Fixed typos in header comments.

include/SDL_hints.h

@@ -285,7 +285,7 @@ extern "C" {
 
 
 /**
- *  \brief If set to 0 then never set the top most bit on a SDL Window, even if the video mode expects it.
+ *  \brief If set to "0" then never set the top most bit on a SDL Window, even if the video mode expects it.
  *      This is a debugging aid for developers and not expected to be used by end users. The default is "1"
  *
  *  This variable can be set to the following values:
@@ -319,7 +319,7 @@ extern "C" {
 
 /**
  *  \brief A variable that determines whether ctrl+click should generate a right-click event on Mac
- *  
+ *
  *  If present, holding ctrl while left clicking will generate a right click
  *  event when on Mac.
  */
@@ -390,7 +390,7 @@ extern "C" {
  *
  *  Network-enabled WinRT apps must include a privacy policy.  On Windows 8, 8.1, and RT,
  *  Microsoft mandates that this policy be available via the Windows Settings charm.
- *  SDL provides code to add a link there, with it's label text being set via the
+ *  SDL provides code to add a link there, with its label text being set via the
  *  optional hint, SDL_HINT_WINRT_PRIVACY_POLICY_LABEL.
  *
  *  Please note that a privacy policy's contents are not set via this hint.  A separate
@@ -407,7 +407,7 @@ extern "C" {
  */
 #define SDL_HINT_WINRT_PRIVACY_POLICY_LABEL "SDL_HINT_WINRT_PRIVACY_POLICY_LABEL"
 
-/** \brief If set to 1, back button press events on Windows Phone 8+ will be marked as handled.
+/** \brief If set to "1", back button press events on Windows Phone 8+ will be marked as handled.
  *
  *  TODO, WinRT: document SDL_HINT_WINRT_HANDLE_BACK_BUTTON need and use
  *  For now, more details on why this is needed can be found at the
@@ -427,7 +427,7 @@ extern "C" {
  *                button on their titlebars).
  *    "1"       - Enable Spaces support (FULLSCREEN_DESKTOP will use them and
  *                SDL_WINDOW_RESIZABLE windows will offer the "fullscreen"
- *                button on their titlebars.
+ *                button on their titlebars).
  *
  *  The default value is "1". Spaces are disabled regardless of this hint if
  *   the OS isn't at least Mac OS X Lion (10.7). This hint must be set before