[Chapel Merge] Fix savec test for ChplConfig module/warning added

Branch: refs/heads/main
Revision: 85d522f
Author: bradcray
Link: https://github.com/chapel-lang/chapel/pull/19199
Log Message:

Merge pull request #19199 from bradcray/fix-savec-chplconfig

Fix savec test for ChplConfig module/warning added in #19162

[trivial, not reviewed]

I didn't catch this failure in my testing because the test is skipped
with the LLVM back-end. This should resolve the failures in asan,
linux32, c-backend, and quickstart testing.

Modified Files:
M test/compflags/diten/savec.chpl

Compare: https://github.com/chapel-lang/chapel/compare/9f3f76a925f9...85d522f04c0d