Since the filling memory with junk patterns have been removed from ISC
memory context in favor of jemalloc opt.junk option, enable the jemalloc
behaviour by default in the GitLab CI.
# Locale settings do not affect the build, but might affect tests.
LC_ALL: C
+ # enable junk filling via jemalloc option
+ MALLOC_CONF: "junk:true"
+
# automated commits will inherit identification from pipeline trigger
GIT_AUTHOR_NAME: "$GITLAB_USER_NAME (GitLab job $CI_JOB_ID)"
GIT_AUTHOR_EMAIL: "$GITLAB_USER_EMAIL"