Update updateApiDefinitions.sh

Author: lakshmiravalir

scripts/updateApiDefinitions.sh

@@ -14,7 +14,7 @@ rm -rf OAI_CHANGES.md
 echo "Git configurations"
 git config --global user.email "[email protected]"
 git config --global user.name "lakshmiravali"
-branch=$(git branch)
+branch=$(git branch --show-current)
 echo "Current branch: $branch"
 git add .
 commitMessage=''