Added option to disable printing of gcov-out

[nmoinvaz]

This is similar to the same option by the same name in the bash uploader. Any errors written out to stderr by gcov will still be output in the Popen call. This PR should also help with #168.

[codecov]

Codecov Report

Merging #305 (b40cb0a) into master (5862842) will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #305   +/-   ##
=====================================
  Coverage      88%    88%           
=====================================
  Files           2      2           
  Lines           9      9           
=====================================
  Hits            8      8           
  Misses          1      1           

[nmoinvaz]

@thomasrockhu it would be great to get this feature into a release. At work we have a large project with many sources files and the build logs get full easily with the gcov output. Thanks in advance!

[thomasrockhu]

I think we should write this regardless

Suggested change

	if codecov.gcov_out:
	write(" Executing gcov (%s)" % cmd)
	write(" Executing gcov (%s)" % cmd)

[nmoinvaz]

A few lines above, it says Processing gcov.. One of the reasons I thought it might not be necessary is that each of the gcov files is listed under Collecting reports.

Let me know if you would still like it printed.

[nmoinvaz]

@thomasrockhu I have made some of the requested changes.

[nmoinvaz]

Thanks!

[nmoinvaz]

With this PR our coverage build logs went from 426KB to 114KB.