eval_error.c: constify

nobu · nobu · commit 5fa5b50e5879 · 2016-02-25T12:36:25.000Z
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53940 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
diff --git a/eval_error.c b/eval_error.c
@@ -139,7 +139,7 @@ error_print(void)
 	    warn_print("\n");
 	}
 	else {
-	    char *tail = 0;
+	    const char *tail = 0;
 	    long len = elen;
 
 	    if (RSTRING_PTR(epath)[0] == '#')
