Files
compiler-explorer/test/example-config
Artem Belevich 76dc4b0ca5 Add += append syntax for string properties. (#8387)
Introduce a += operator in property file parsing that appends values to
existing string properties. This allows splitting long property values
across multiple lines for improved readability.

Example:
  group.compilers=comp1:comp2:comp3
  group.compilers+=:comp4:comp5:comp6

Error handling:
- Logs error and skips if += is used on an undefined property
- Logs error and skips if += is used on a non-string property

Includes unit tests for the new functionality.

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2026-02-02 20:02:38 -06:00
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