awk: undo TI_PRINT, it introduced a bug (print with any redirect acting as printf)

function                                             old     new   delta
evaluate                                            3329    3337      +8

Patch by Ron Yorston <rmy@pobox.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

testsuite/awk.tests

@@ -450,4 +450,9 @@ testing "awk exit N propagates through END's exit" \
 	"42\n" \
 	'' ''
 
+testing "awk print + redirect" \
+	"awk 'BEGIN { print \"STDERR %s\" >\"/dev/stderr\" }' 2>&1" \
+	"STDERR %s\n" \
+	'' ''
+
 exit $FAILCOUNT