Fix wordlist separator for reading workflow results

Change-Id: I57cbd8d1d945c48c43c1533cfba4fad3eaaedde6
diff --git a/bin/import_github_pull_requests b/bin/import_github_pull_requests
index 4dd6e14..f0f5477 100755
--- a/bin/import_github_pull_requests
+++ b/bin/import_github_pull_requests
@@ -54,8 +54,8 @@
 git fetch github
 git fetch origin
 OLDHEAD=$(git log --pretty=format:%H -1)
-IFS=','
-while read -r success nr sha message; do
+
+while IFS=',' read -r success nr sha message; do
   if [ "$success" == "$GET_CI_STATUS_SUCCESS" ]; then
     if git cherry-pick "$sha" > /dev/null 2> /dev/null; then
       # add closes #<nr> to let github automatically close the PR and add change-id via hook