Update Connector/C

cvicentiu · cvicentiu · commit 34b03da21148 · 2018-03-18T15:11:48.000+02:00
diff --git a/libmariadb b/libmariadb
@@ -1 +1 @@
-Subproject commit 67cc3438a84df9fa3cc0cfbf9ed81242502702da
+Subproject commit 668757aaa9a55d2bcd806908cb5a8e806cd6dc31
