minor doc fixes

collects/db/scribblings/connect.scrbl

@@ -627,7 +627,7 @@ ODBC's DSNs.
          data-source?]
 @defproc[(mysql-data-source
            [#:user user string? @#,absent]
-           [#:database database string? @#,absent]
+           [#:database database (or/c string? #f) @#,absent]
            [#:server server string? @#,absent]
            [#:port port exact-positive-integer? @#,absent]
            [#:socket socket (or/c path-string? 'guess #f) @#,absent]

collects/db/scribblings/notes.scrbl

@@ -71,9 +71,10 @@ not supported.
 
 As of version 5.5.7, MySQL supports
 @hyperlink["http://dev.mysql.com/doc/mysql-security-excerpt/5.5/en/pluggable-authentication.html"]{authentication
-plugins}. The only plugin currently supported by this library is
-@tt{mysql_native_password} (the default), which corresponds to the
-password authentication mechanism used since version 4.1.
+plugins}. The only plugins currently supported by this library are
+@tt{mysql_native_password} (the default) and @tt{mysql_old_password},
+which corresponds to the password authentication mechanisms used since
+version 4.1 and before 4.1, respectively.
 
 
 @section[#:tag "sqlite3-requirements"]{SQLite Requirements}

collects/macro-debugger/macro-debugger.scrbl

@@ -43,7 +43,7 @@ syntax properties, such as lexical binding information and source
 location.
 
 
-@section{Macro stepper}
+@section{Macro Stepper}
 
 @defmodule[macro-debugger/stepper]
 
@@ -62,7 +62,7 @@ single module declaration, and opens a macro stepper frame for
 stepping through the expansion.
 }
 
-@section{Macro expansion tools}
+@section{Macro Expansion Tools}
 
 @defmodule[macro-debugger/expand]
 
@@ -112,7 +112,7 @@ result as the original syntax.
 }
 
 
-@section{Macro stepper API for macros}
+@section{Macro Stepper API for Macros}
 
 @defmodule[macro-debugger/emit]
 
@@ -169,7 +169,7 @@ of macro hiding.
 }
 
 
-@section{Macro stepper text interface}
+@section{Macro Stepper Text Interface}
 
 @defmodule[macro-debugger/stepper-text]
 
@@ -204,7 +204,7 @@ of macro hiding.
 }
 
 
-@section{Syntax browser}
+@section{Syntax Browser}
 
 @defmodule[macro-debugger/syntax-browser]
 
@@ -225,7 +225,7 @@ of macro hiding.
 }
 
 
-@section{Using the macro stepper}
+@section{Using the Macro Stepper}
 
 @subsection{Navigation}
 
@@ -238,7 +238,7 @@ provides ``Previous term'' and ``Next term'' buttons to go up and down in
 the list of expansions. Horizontal lines delimit the current expansion
 from the others.
 
-@subsection{Macro hiding}
+@subsection{Macro Hiding}
 
 Macro hiding lets one see how expansion would look if certain macros
 were actually primitive syntactic forms. The macro stepper skips over
@@ -259,7 +259,7 @@ Macro hiding, even with no macros marked opaque, also hides certain
 other kinds of steps: internal defines are not rewritten to letrecs,
 begin forms are not spliced into module or block bodies, etc.
 
-@section{Using the syntax browser}
+@section{Using the Syntax Browser}
 
 @subsection{Selection}
 
@@ -276,7 +276,7 @@ object in the properties panel on the right, when that panel is
 shown. The selected syntax also determines the highlighting done by
 the secondary partitioning (see below).
 
-@subsection{Primary partition}
+@subsection{Primary Partition}
 
 The primary partition is indicated by foreground color.
 
@@ -296,7 +296,7 @@ different environments.
 
 @;@example[(bound-identifier=? (let ([x 1]) #'x) #'x)]
 
-@subsection{Secondary partitioning}
+@subsection{Secondary Partitioning}
 
 The user may select a secondary partitioning through the Syntax
 menu. This partitioning applies only to identifiers. When the user
@@ -328,7 +328,7 @@ selected syntax object. The properties pane has two tabbed pages:
 }
 ]
 
-@subsection{Interpreting syntax}
+@subsection{Interpreting Syntax}
 
 The binding information of a syntax object may not be the same as
 the binding structure of the program it represents. The binding

collects/unstable/scribblings/gui.scrbl

@@ -3,7 +3,7 @@
           scribble/manual
           (for-label scribble/base))
 
-@title[#:style '(toc) #:tag "unstable-gui"]{GUI libraries}
+@title[#:style '(toc) #:tag "unstable-gui"]{GUI Libraries}
 
 @local-table-of-contents[#:style 'immediate-only]
 

collects/unstable/scribblings/hash.scrbl

@@ -16,7 +16,7 @@ This module provides tools for manipulating hash tables.
                      [h hash?] ...
                      [#:combine combine
                                 (-> any/c any/c any/c)
-                                (lambda _ (error 'hash-union ...))]
+                                (lambda _ (error 'hash-union ....))]
                      [#:combine/key combine/key
                                     (-> any/c any/c any/c any/c)
                                     (lambda (k a b) (combine a b))])
@@ -30,7 +30,9 @@ key @racket[k] and value @racket[v], if a mapping from @racket[k] to some value
 
 @defexamples[
 #:eval the-eval
-(hash-union (make-immutable-hash '([1 . one])) (make-immutable-hash '([2 . two])) (make-immutable-hash '([3 . three])))
+(hash-union (make-immutable-hash '([1 . one]))
+            (make-immutable-hash '([2 . two]))
+            (make-immutable-hash '([3 . three])))
 (hash-union (make-immutable-hash '([1 . (one uno)] [2 . (two dos)]))
             (make-immutable-hash '([1 . (ein une)] [2 . (zwei deux)]))
             #:combine/key (lambda (k v1 v2) (append v1 v2)))
@@ -42,7 +44,7 @@ key @racket[k] and value @racket[v], if a mapping from @racket[k] to some value
                       [h hash?] ...
                       [#:combine combine
                                  (-> any/c any/c any/c)
-                                 (lambda _ (error 'hash-union ...))]
+                                 (lambda _ (error 'hash-union ....))]
                       [#:combine/key combine/key
                                      (-> any/c any/c any/c any/c)
                                      (lambda (k a b) (combine a b))])

collects/unstable/scribblings/unstable.scrbl

@@ -20,7 +20,7 @@ Developers of unstable libraries must follow the guidelines in
 
 @;{--------}
 
-@section[#:tag "guidelines"]{Guidelines for developing @racketmodname[unstable] libraries}
+@section[#:tag "guidelines"]{Guidelines for Developing @racketmodname[unstable] Libraries}
 
 Any collection developer may add modules to the
 @racketmodname[unstable] collection.

collects/unstable/scribblings/wrapc.scrbl

@@ -5,7 +5,7 @@
 @(define the-eval (make-base-eval))
 @(the-eval '(require racket/contract (for-syntax racket/base unstable/wrapc)))
 
-@title[#:tag "wrapc"]{Contracts for macro subexpressions}
+@title[#:tag "wrapc"]{Contracts for Macro Subexpressions}
 
 This library provides a procedure @racket[wrap-expr/c] for applying
 contracts to macro subexpressions.