pp_regcomp: don't unset RXf_TAINTED

Currently at the end of this function, the flag RXf_TAINTED is set or
unset based the value of PL_tainting.

Skip the unsetting part. At the moment this is a noop, but in some future
variant, it might clear the flag that has already been set in some other
way.

In other words, be conservative.

1 files changed, 0 insertions, 2 deletions

diff --git a/pp_ctl.c b/pp_ctl.c
index f5a7a48f4b..44cf3c1337 100644
--- a/pp_ctl.c
+++ b/pp_ctl.c
@@ -244,8 +244,6 @@ PP(pp_regcomp)
 	    SvTAINTED_on((SV*)re);
 	    RX_EXTFLAGS(re) |= RXf_TAINTED;
 	}
-	else
-	    RX_EXTFLAGS(re) &= ~RXf_TAINTED;
     }
 #endif