* process.c (rb_exec_fillarg): bail out a loop eagerly.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35919 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 2 deletions

diff --git a/process.c b/process.c
index acd7834671..90d828eb8f 100644
--- a/process.c
+++ b/process.c
@@ -1805,10 +1805,12 @@ rb_exec_fillarg(VALUE prog, int argc, VALUE *argv, VALUE env, VALUE opthash, str
         int has_meta = 0;
         int has_nonspace = 0;
         for (p = RSTRING_PTR(prog); *p; p++) {
-            if (*p != ' ' && *p != '\t')
+            if (!has_nonspace && *p != ' ' && *p != '\t')
                 has_nonspace = 1;
-            if (strchr("*?{}[]<>()~&|\\$;'`\"\n", *p))
+            if (!has_meta && strchr("*?{}[]<>()~&|\\$;'`\"\n", *p))
                 has_meta = 1;
+            if (has_nonspace && has_meta)
+                break;
         }
         if (has_nonspace && !has_meta) {
             /* avoid shell since no shell meta charactor found. */