Fix #578

Signed-off-by: Sara Damiano <sdamiano@stroudcenter.org>

src/TinyGsmClientSIM7080.h

@@ -247,7 +247,7 @@ class TinyGsmSim7080 : public TinyGsmSim70xx<TinyGsmSim7080>,
     //                  2: CHAP
     //                  3: PAP or CHAP
     if (pwd && strlen(pwd) > 0 && user && strlen(user) > 0) {
-      sendAT(GF("+CNCFG=0,1,\""), apn, "\",\"", "\",\"", user, pwd, '"');
+      sendAT(GF("+CNCFG=0,1,\""), apn, "\",\"", user, "\",\"", pwd, '"');
       waitResponse();
     } else if (user && strlen(user) > 0) {
       // Set the user name only