Revert one hunk of change 32034 that had the possibility of being buggy

(the sprintf "%c" code will work correctly when the SV is UTF-8).
Audit all the rest for UTF-8 correctness, and force SvUTF-8_off() in
utf8.c to ensure correctness. (The string is reset to "", so this will
not be a behaviour change.)

p4raw-id: //depot/perl@32040

1 files changed, 1 insertions, 0 deletions

diff --git a/utf8.c b/utf8.c
index c665a417ce..45b17b1b62 100644
--- a/utf8.c
+++ b/utf8.c
@@ -2136,6 +2136,7 @@ Perl_pv_uni_display(pTHX_ SV *dsv, const U8 *spv, STRLEN len, STRLEN pvlim, UV f
     const char *s, *e;
 
     sv_setpvn(dsv, "", 0);
+    SvUTF8_off(dsv);
     for (s = (const char *)spv, e = s + len; s < e; s += UTF8SKIP(s)) {
 	 UV u;
 	  /* This serves double duty as a flag and a character to print after