Change Travis OTP platform from 19.1 to 19.3

Seems like Travis has problems with OTPs below 19.3

diff --git a/.travis.yml b/.travis.yml
index a4e7141178c4940c3a0e63d4197f0150b7b7ca48..0efb75bab8273a4cd078b46ab8bf40c67b0c9ffd 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: erlang
 
 otp_release:
-  - 19.1
+  - 19.3
   - 20.3
   - 21.2