[Bug gcov-profile/94928] Doc comments in gcov-io.h do not show cwd and unexec blocks in the Notes file format

[myron.walker at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94928

--- Comment #9 from Myron Walker <myron.walker at gmail dot com> ---
How you I process data files from multiple sources and multiple runs with gcov.