Remove unnecessary & confusing slash

[webgtx]

As a first-time reader, I found the %install instruction in Working with SPEC files/bello example confusing.

The problem isn't even in the unnecessary slash in mkdir arguments, it's the inconsistency that confuses.

Macro	Eval
%{buildroot}/%{_bindir}	$HOME/rpmbuild/BUILDROOT//usr/bin
%{buildroot}%{_bindir}/%{name}	$HOME/rpmbuild/BUILDROOT/usr/bin/bello

I understand that the extra slash might be intended for readability, but I find inconsistency more confusing.

I propose two options: either add a slash between %{buildroot} and %{_bindir} in install, or remove the extra slash from the mkdir.

Thanks.