tweaks: improve a comment, add one, and move one

Also, normalize the spelling of two keystrokes in an old news item.

NEWS

@@ -1677,7 +1677,7 @@
              allow multiple syntax highlighting types, and a new -Y,
              --syntax flag to set a specific one if there's no
              filename regex to match it against (i.e. w/mutt).  The
-             ^space and M-space keys will now show up in the help
+             ^Space and M-Space keys will now show up in the help
              menu, which itself has been tweaked a bit, and many more
              configure options should now cooperate (like the odd
              pairing of --enable-tiny and --enable-multibuffer).  The

src/files.c

@@ -2300,7 +2300,7 @@ void do_writeout(void)
 		close_and_go();
 }
 
-/* If it has a name, write the current buffer to disk without prompting. */
+/* Write the current buffer to disk without prompting (if it has a name). */
 void do_savefile(void)
 {
 	if (write_it_out(FALSE, FALSE) == 2)

src/rcfile.c

@@ -964,6 +964,7 @@ void parse_one_include(char *file, syntaxtype *syntax)
 		extra = extra->next;
 	}
 
+	/* Indicate that this syntax has been loaded. */
 	free(syntax->filename);
 	syntax->filename = NULL;
 

src/text.c

@@ -2684,12 +2684,12 @@ void do_linter(void)
 	/* Block resizing signals while reading from the pipe. */
 	block_sigwinch(TRUE);
 
-	/* Read in the returned syntax errors. */
 	totalread = 0;
 	buffersize = pipesize + 1;
 	lintings = nmalloc(buffersize);
 	pointer = lintings;
 
+	/* Read in the returned syntax errors. */
 	while ((bytesread = read(lint_fd[0], pointer, pipesize)) > 0) {
 		totalread += bytesread;
 		buffersize += pipesize;