[hackers] [sbase] Just use int for mode || sin

[git]

commit 64aac9b504c23b1fdf451025ff3d0765bec6edcd
Author: sin <s...@2f30.org>
Date:   Thu Nov 20 17:26:47 2014 +0000

    Just use int for mode

diff --git a/grep.c b/grep.c
index b02ff38..b2c41b7 100644
--- a/grep.c
+++ b/grep.c
@@ -24,7 +24,7 @@ static int sflag;
 static int vflag;
 static int xflag;
 static int many;
-static char mode;
+static int mode;
 
 struct pattern {
        char *pattern;