Bump default build standard to gnu99

7 jobs for std_gnu99 in 16 minutes and 11 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #194712
cross-android_api21_arm64

00:02:08

passed #194713
cross-android_api28_arm64

00:02:07

passed #194714
cross-mingw64

00:02:29

passed #194711
fedora-x86_64

00:05:31

passed #194715
win32
msys2-mingw32

00:08:14

passed #194716
win32
vs2017-x64

00:07:52

 
  Coverage
passed #194717
coverage

00:02:21

74.1%