ci: output Travis folding markers for each build stage

Makes build logs vastly more readable on Travis web UI

Change-Id: I00ebf48f80d73d7aad00b890d9c16c2254cb609c
diff --git a/.jenkins.d/00-deps.sh b/.jenkins.d/00-deps.sh
index 2a8d230..ba85553 100755
--- a/.jenkins.d/00-deps.sh
+++ b/.jenkins.d/00-deps.sh
@@ -16,7 +16,7 @@
 
     brew update
     if [[ -n $TRAVIS ]]; then
-        # travis images come with a large number of brew packages
+        # Travis images come with a large number of brew packages
         # pre-installed, don't waste time upgrading all of them
         for FORMULA in "${FORMULAE[@]}"; do
             brew outdated $FORMULA || brew upgrade $FORMULA
@@ -38,7 +38,7 @@
     fi
 fi
 
-if has CentOS $NODE_LABELS; then
+if has CentOS-7 $NODE_LABELS; then
     sudo yum -y install yum-utils pkgconfig \
                         openssl-devel libtranslit-icu \
                         python-devel sqlite-devel \