This was also updated in gnulib.
* bootstrap: s/can not/cannot/
# commit hash to minimize the amount of data downloaded and changes
# needed to be processed, which can drastically reduce download and
# processing time for checkout. If the fetch by commit fails, a
- # shallow fetch can not be performed because we do not know what the
+ # shallow fetch cannot be performed because we do not know what the
# depth of the commit is without fetching all commits. So fall back
# to fetching all commits.
git -C "$gnulib_path" init