style fix

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/match.c b/shell/match.c
index 90f7754..8024f27 100644
--- a/shell/match.c
+++ b/shell/match.c
@@ -95,7 +95,7 @@
 }
 
 #ifdef STANDALONE
-int main(int argc, char *argv[])
+int main(int argc, char **argv)
 {
 	char *string;
 	char *op;