[Chapel Merge] Clean up a very small section of compiler/util/fil

Branch: refs/heads/master
Revision: ea28521
Author: leekillough
Log Message:

Merge pull request #17535 from leekillough/cleanup_envMap

Clean up a very small section of compiler/util/files.cpp

[ Internal implementation refactor -- no user-facing changes like bug fixes or feature enhancements ]

[ Reviewers: @ben-albrecht ]

Modified Files:
M compiler/include/files.h

M compiler/util/files.cpp

Compare: https://github.com/chapel-lang/chapel/compare/27cc6d0994f1...ea2852116e4c