diff --git a/src/vim.h b/src/vim.h
index 153a8c6..57fbe36 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -781,26 +781,27 @@
 #define WILD_ICASE		0x100
 #define WILD_ALLLINKS		0x200
 
-/* Flags for expand_wildcards() */
-#define EW_DIR		0x01	/* include directory names */
-#define EW_FILE		0x02	/* include file names */
-#define EW_NOTFOUND	0x04	/* include not found names */
-#define EW_ADDSLASH	0x08	/* append slash to directory name */
-#define EW_KEEPALL	0x10	/* keep all matches */
-#define EW_SILENT	0x20	/* don't print "1 returned" from shell */
-#define EW_EXEC		0x40	/* executable files */
-#define EW_PATH		0x80	/* search in 'path' too */
-#define EW_ICASE	0x100	/* ignore case */
-#define EW_NOERROR	0x200	/* no error for bad regexp */
-#define EW_NOTWILD	0x400	/* add match with literal name if exists */
-#define EW_KEEPDOLLAR	0x800	/* do not escape $, $var is expanded */
-/* Note: mostly EW_NOTFOUND and EW_SILENT are mutually exclusive: EW_NOTFOUND
- * is used when executing commands and EW_SILENT for interactive expanding. */
-#define EW_ALLLINKS	0x1000	/* also links not pointing to existing file */
-#define EW_SHELLCMD	0x2000	/* called from expand_shellcmd(), don't check
-				 * if executable is in $PATH */
-#define EW_DODOT	0x4000	/* also files starting with a dot */
-#define EW_EMPTYOK	0x8000	/* no matches is not an error */
+// Flags for expand_wildcards()
+#define EW_DIR		0x01	// include directory names
+#define EW_FILE		0x02	// include file names
+#define EW_NOTFOUND	0x04	// include not found names
+#define EW_ADDSLASH	0x08	// append slash to directory name
+#define EW_KEEPALL	0x10	// keep all matches
+#define EW_SILENT	0x20	// don't print "1 returned" from shell
+#define EW_EXEC		0x40	// executable files
+#define EW_PATH		0x80	// search in 'path' too
+#define EW_ICASE	0x100	// ignore case
+#define EW_NOERROR	0x200	// no error for bad regexp
+#define EW_NOTWILD	0x400	// add match with literal name if exists
+#define EW_KEEPDOLLAR	0x800	// do not escape $, $var is expanded
+// Note: mostly EW_NOTFOUND and EW_SILENT are mutually exclusive: EW_NOTFOUND
+// is used when executing commands and EW_SILENT for interactive expanding.
+#define EW_ALLLINKS	0x1000	// also links not pointing to existing file
+#define EW_SHELLCMD	0x2000	// called from expand_shellcmd(), don't check
+				// if executable is in $PATH
+#define EW_DODOT	0x4000	// also files starting with a dot
+#define EW_EMPTYOK	0x8000	// no matches is not an error
+#define EW_NOTENV	0x10000	// do not expand environment variables
 
 /* Flags for find_file_*() functions. */
 #define FINDFILE_FILE	0	/* only files */