ci: s/TRAVIS_OS_NAME/CI_OS_NAME/ for non-Travis-specific code

.travis.yml

@@ -54,6 +54,7 @@ env:
     - CCACHE_COMPRESS=1
     - CCACHE_SLOPPINESS=time_macros,file_macro
     - CCACHE_BASEDIR="$TRAVIS_BUILD_DIR"
+    - CI_OS_NAME="$TRAVIS_OS_NAME"
 
 anchors:
   envs: &common-job-env

ci/common/build.sh

@@ -1,5 +1,5 @@
 _stat() {
-  if test "${TRAVIS_OS_NAME}" = osx ; then
+  if test "${CI_OS_NAME}" = osx ; then
     stat -f %Sm "${@}"
   else
     stat -c %y "${@}"

ci/common/test.sh

@@ -15,7 +15,7 @@ print_core() {
     return 0
   fi
   echo "======= Core file $core ======="
-  if test "${TRAVIS_OS_NAME}" = osx ; then
+  if test "${CI_OS_NAME}" = osx ; then
     lldb -Q -o "bt all" -f "${app}" -c "${core}"
   else
     gdb -n -batch -ex 'thread apply all bt full' "${app}" -c "${core}"
@@ -30,7 +30,7 @@ check_core_dumps() {
   fi
   local app="${1:-${BUILD_DIR}/bin/nvim}"
   local cores
-  if test "${TRAVIS_OS_NAME}" = osx ; then
+  if test "${CI_OS_NAME}" = osx ; then
     cores="$(find /cores/ -type f -print)"
     local _sudo='sudo'
   else