spawn: Remove unnecessary and redundant comments

src/spawn.c

@@ -79,22 +79,7 @@
 /*
  *  Checks whether a command line is syntactically valid and extracts the program name from it.
  *
- *  All OS:
- *     - any leading spaces, tabs and new lines are skipped
- *     - an empty command is invalid
- *  Unix:
- *     - the standard shell quoting and escaping rules are used, see @c g_shell_parse_argv()
- *     - as a consequence, an unqouted # at the start of an argument comments to the end of line
- *  Windows:
- *     - leading carriage returns are skipped too
- *     - a quoted program name must be entirely inside the quotes. No "C:\Foo\Bar".pdf or
- *       "C:\Foo\Bar".bat, which would be executed by Windows as C:\Foo\Bar.exe
- *     - an unquoted program name may not contain spaces. Foo Bar Qux will not be considered
- *       "Foo Bar.exe" Qux or "Foo Bar Qux.exe", depending on what executables exist, as
- *       Windows normally does.
- *     - the program name must be separated from the arguments by at least one space or tab
- *     - the standard Windows quoting and escaping rules are used: double quote is escaped with
- *       backslash, and any literal backslashes before a double quote must be duplicated.
+ *  See @c spawn_check_command() for details.
  *
  *  @param command_line the command line to check and get the program name from.
  *  @param error return location for error.
@@ -1065,10 +1050,6 @@ static void spawn_append_gstring_cb(GString *string, GIOCondition condition, gpo
 }
 
 
-/*
- *  Convinience @c GChildWatchFunc callback that copies the child exit status into a gint
- *  pointed by @a exit_status.
- */
 static void spawn_get_exit_status_cb(G_GNUC_UNUSED GPid pid, gint status, gpointer exit_status)
 {
 	*(gint *) exit_status = status;