This commit allows the code in the srpm-utils script to recognize
/usr/bin/mkdir (as an alias for mkdir).
In summary, some SRPMs in CentOS 8 such as iptables make use of the
%{__mkdir} macro, which expands to /usr/bin/mkdir, which in turn was not
recognized by srpm-utils.
Verification: build-pkgs --edit now works with a version of iptables
imported from CentOS 8.
Signed-off-by: M. Vefa Bicakci <vefa.bicakci@windriver.com>
Closes-Bug: #1948968
Change-Id: I12d20797db91fecdac409b0535632ac97bd6ad47