Use ConfigParser instead of deprecated SafeConfigParser
Use ConfigParser instead of deprecated SafeConfigParser

Fixes this annoying warning while running the tests:

mesonbuild/coredata.py:237: DeprecationWarning: The SafeConfigParser
class has been renamed to ConfigParser in Python 3.2. This alias will be
removed in future versions. Use ConfigParser directly instead.

jpakkane/meson,mesonbuild/meson,becm/meson,mesonbuild/meson,becm/meson,mesonbuild/meson,pexip/meson,mesonbuild/meson,jpakkane/meson,QuLogic/meson,QuLogic/meson,jpakkane/meson,mesonbuild/meson,becm/meson,pexip/meson,jpakkane/meson,pexip/meson,QuLogic/meson,becm/meson,QuLogic/meson,jpakkane/meson,pexip/meson,becm/meson,QuLogic/meson,becm/meson,becm/meson,jpakkane/meson,pexip/meson,QuLogic/meson,mesonbuild/meson,QuLogic/meson,becm/meson,becm/meson,pexip/meson,pexip/meson,jpakkane/meson,mesonbuild/meson,becm/meson,QuLogic/meson,jpakkane/meson,jpakkane/meson,pexip/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,QuLogic/meson,pexip/meson,mesonbuild/meson