fix grep's -C option

SVN-Revision: 4857

openwrt/package/busybox/patches/230-grep_C.patch

@@ -0,0 +1,12 @@
+diff -Nur busybox-1.2.1/findutils/grep.c busybox-1.2.1/findutils/grep.c
+--- busybox-1.2.1/findutils/grep.c	2006-09-25 14:47:51.000000000 -0700
++++ busybox-1.2.1/findutils/grep.c	2006-09-25 14:39:39.000000000 -0700
+@@ -51,7 +51,7 @@
+ #define GREP_OPT_L (1<<12)
+ #define PRINT_FILES_WITHOUT_MATCHES ((opt & GREP_OPT_L) != 0)
+ #if ENABLE_FEATURE_GREP_CONTEXT
+-#define GREP_OPT_CONTEXT "A:B:C"
++#define GREP_OPT_CONTEXT "A:B:C:"
+ #define GREP_OPT_A (1<<13)
+ #define GREP_OPT_B (1<<14)
+ #define GREP_OPT_C (1<<15)