Update int.cloudbuild.yaml

Author: apeabody

build/int.cloudbuild.yaml

@@ -36,13 +36,13 @@ steps:
 
       # Do not prune if changing tests themselves
       _INFRA_FOLDERS="build test .github"
-      while read _changed_folders; do
-        echo "${_changed_folders%/}"
-        if [[ "${_INFRA_FOLDERS}" =~ "${_changed_folders%/}" ]]; then
-          echo "Infrastructure folder ${_changed_folders%/} has changed; no tests will be pruned."
+      while read d; do
+        echo "${d%/}"
+        if [[ "${_INFRA_FOLDERS}" =~ "${d%/}" ]]; then
+          echo "Infrastructure folder ${d%/} has changed; no tests will be pruned."
           exit 0 # do not prune
         fi
-      done
+      done < _changed_folders
 
       # Remove leaf folders without changes or non-tf resources
       for d in `find . -type d -name 'test' -prune -o -links 2 -printf '%P\n'`; do