fix valgrind errors on my machine

Author: o-

.valgrind_suppressions

@@ -0,0 +1,24 @@
+{
+   not_our_bug
+   Memcheck:Cond
+   fun:__gconv_transform_internal_utf8
+   fun:wcsrtombs
+   fun:wcstombs
+   fun:tre_parse_bracket_items
+   fun:tre_parse_bracket
+   fun:tre_parse
+   fun:tre_compile
+   fun:tre_regcompb
+}
+{
+   not_our_bug_either
+   Memcheck:Cond
+   fun:__wcsnlen_avx2
+   fun:wcsrtombs
+   fun:wcstombs
+   fun:tre_parse_bracket_items
+   fun:tre_parse_bracket
+   fun:tre_parse
+   fun:tre_compile
+   fun:tre_regcompb
+}

tools/tests

@@ -45,7 +45,7 @@ function run_test {
   VALGRIND=""
 
   if [[ "$ENABLE_VALGRIND" == "1" ]]; then
-      VALGRIND="-d valgrind --debugger-args=--error-exitcode=13"
+      VALGRIND="-d valgrind --debugger-args=--error-exitcode=13 --debugger-args=--suppressions=$ROOT_DIR/.valgrind_suppressions"
   fi
 
   if test "$(uname)" = "Darwin"; then