Merge pull request #127 from ueno/wip/dueno/gcov

gcov: accommodate the execution_count format change in GCC 8.1

upstream gcov change: github.com/gcc-mirror/gcc/commit/3cf7fddf54b5160e83236f1b9b3129e2a3a417c6

Author: chrisosaurus

cpp_coveralls/coverage.py

@@ -285,7 +285,7 @@ def parse_gcov_file(args, fobj, filename):
             # error.
             coverage.append(0)
         else:
-            coverage.append(int(cov_num))
+            coverage.append(int(cov_num.rstrip('*')))
     return coverage
 
 def parse_lcov_file_info(args, filepath, line_iter, line_coverage_re, file_end_string):