'shellcheck ' found no issues.

'shfmt ' returned error 1 finding the following formatting issues:

----------
--- env.sh.orig
+++ env.sh
@@ -163,7 +163,6 @@
     fi
     export LLVM_PROFDATA
 
-
     if [[ -z "${ENABLE_PCH}" ]]; then
         ENABLE_PCH='ON'
     fi
--- run-fe-ut.sh.orig
+++ run-fe-ut.sh
@@ -16,8 +16,6 @@
 # specific language governing permissions and limitations
 # under the License.
 
-
-
 set -eo pipefail
 
 ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
----------

You can reformat the above files to meet shfmt's requirements by typing:

  shfmt  -w filename