[Bug gcov-profile/102746] gcov returns 0 un erroneuos incovation

[chipitsine at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102746

--- Comment #2 from Илья Шипицин <chipitsine at gmail dot com> ---
I came to this situation using wrong powershell approach. I found all "gcda"
and merged them into single string. Powershell executed "gcov" and passed 1
(!!) argument as concatenated string.

Actually, if gcov cannot find some required file, it should return "1" (or
other non zero).