Sanitize url for printing when given password passed as parameter

Signed-off-by: AlexDHoffer <alexdchoffer@gmail.com>

cmd/postgres_exporter/util.go

@@ -217,5 +217,14 @@ func loggableDSN(dsn string) string {
 		pDSN.User = url.UserPassword(pDSN.User.Username(), "PASSWORD_REMOVED")
 	}
 
+    // Blank password data from parameters if not nil
+    q := pDSN.Query()
+    if q != nil {
+        if q.Get("password") != "" {
+            q.Set("password", "PASSWORD_REMOVED")
+            pDSN.RawQuery = q.Encode()
+        }
+    }
+
 	return pDSN.String()
 }