Despite the fact that user installed 'vim-enhanced' package, the alias
didn't stop notifying user that 'vim' is not installed till the shell
was restarted.
Newly, if /usr/bin/vim suddenly appears (vim-enhanced is freshly
installed) the alias is mostly no-op and vim is used directly.
On top of ^, if user touches the ~/.i-know-vim-is-vi file, 'vi' is
silently started instead of 'vim' without the warning.
Resolves: rhbz#1907800
We already alias "vi" to "vim" when the vim-enhanced package is
installed. However, /usr/bin/view is a symlink to vi, which results in
inconsistent behavior between the two - the "vi" command runs in vim
mode, but the "view" command runs in vi mode. Alias "view" to "vim -R"
when vim-enhanced is available so that these are consistent.
