Build plugin: error/warning detection currently broken ?

Hi,

current git does not recognize my error messages and warnings (gcc 12) as errors or 
warnings anymore.
It looks like it's this commit:
https://github.com/KDE/kate/commit/7753a3c037a1c94e7bec81dbf1978cb9c11e45de[1]

The \b breaks it.
Below is one error and one warning message which are both not detected as error/
warning. I changed it to test for "error:" and "warning:", which makes it work for me (but I 
haven't tested yet with other compilers)
error: ‘as’ was not declared in this scope
warning: unused variable ‘error’ [-Wunused-variable]

Alex


--------
[1] https://github.com/KDE/kate/commit/7753a3c037a1c94e7bec81dbf1978cb9c11e45de