File path in regular expression pattern may fail depending on actual path

[s13n]

In test/CMakeLists.txt line 12, a Regex pattern is being constructed from a variable that holds a system-dependent file path. If that path contains characters that are special in a Regex pattern, a failure results.

Example: A path containing plus signs '+'

Bottom line: Don't construct a Regex pattern from unknown text.

[ashtum]

Fixed in 3209276.