tests: tweak chg test to make it fail less often...
tests: tweak chg test to make it fail less often
the test apparently sometimes prints the word "start" as a part of profile,
so let's no longer match "start":
CHGHG=/*/install/bin/hg (glob)
+ \x1b[90m | 50.0% 0.01s profiling.py: __enter__ line 196: self.start()\x1b[0m (esc)
+ \x1b[90m | 50.0% 0.01s profiling.py: start line 261: self._profiler.__enter__()\x1b[0m (esc)
+ \x1b[90m | 50.0% 0.01s profiling.py: statprofile line 125: statprof.start(mechanism=b'...\x1b[0m (esc)
+ \x1b[90m | 50.0% 0.01s statprof.py: start line 356: state.thread.start()\x1b[0m (esc)
+ \x1b[90m | 50.0% 0.01s threading.py: start line 852: self._started.wait()\x1b[0m (esc)