system('VAR123=foo cmd') wasn't invoking shell (de-locale-ized patch

suggested by Dominic Dunlop <domo@computer.org>)

p4raw-id: //depot/perl@4864

diff --git a/doio.c b/doio.c
index 08264a9..3e412b8 100644 (file)
--- a/doio.c
+++ b/doio.c
@@ -1257,7 +1257,7 @@ Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report)
     if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4]))
        goto doshell;
 
-    for (s = cmd; *s && isALPHA(*s); s++) ;    /* catch VAR=val gizmo */
+    for (s = cmd; *s && isALNUM(*s); s++) ;    /* catch VAR=val gizmo */
     if (*s == '=')
        goto doshell;