ash: explain what "local -" does

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-13 02:20:14 +02:00
parent 1285aa62f9
commit e0a4e107aa
1 changed files with 2 additions and 1 deletions
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -8962,7 +8962,8 @@ parse_command_args(char **argv, const char **path)
 * Make a variable a local variable.  When a variable is made local, it's
 * value and flags are saved in a localvar structure.  The saved values
 * will be restored when the shell function returns.  We handle the name
- * "-" as a special case.
+ * "-" as a special case: it makes changes to "set +-options" local
+ * (options will be restored on return from the function).
 */
 static void
 mklocal(char *name)