Fix empty string encoding mappings to NULL

felixbuenemann · felixbuenemann · commit 58b117032ccd · 2019-04-27T02:23:09.000+02:00
diff --git a/ext/mysql2/mysql_enc_to_ruby.h b/ext/mysql2/mysql_enc_to_ruby.h
@@ -54,13 +54,13 @@ static const char *mysql2_mysql_enc_to_rb[] = {
   "macRoman",
   "UTF-16",
   "UTF-16",
-  "",
+  NULL,
   "Windows-1256",
   "Windows-1257",
   "Windows-1257",
   "UTF-32",
   "UTF-32",
-  "",
+  NULL,
   "ASCII-8BIT",
   NULL,
   "US-ASCII",
