Left justify help output

The right justification may look prettier, but it's harder
to read and find the option.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/parse.c b/parse.c
index e09b1bb..84a0f52 100644
--- a/parse.c
+++ b/parse.c
@@ -537,9 +537,12 @@
 
 		if (show_all || match) {
 			found = 1;
-			printf("%20s: %s\n", o->name, o->help);
-			if (show_all)
+			if (match)
+				printf("%20s: %s\n", o->name, o->help);
+			if (show_all) {
+				printf("%-20s: %s\n", o->name, o->help);
 				continue;
+			}
 		}
 
 		if (!match)