Changed instances of msg() to properly use the new format

4 jobs for issue/fix_msg_with_new_fmt_library in 20 minutes and 43 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Test
passed #6734
debian:10 clang-6-libcpp-17

00:20:43

passed #6733
debian:10 gcc-8-17

00:13:24

passed #6735
debian:9 gcc-6-14

00:11:55

passed #6736
ubuntu:18.04 clang-6-17

00:19:08