Description of problem:
If create some tags with ctags, and then vim -t somesymbolthatdoesntexist
vim prints the warning message..
E257: cstag: tag not found
which should be 'ctags'
No, this isn't a typo. vim supports cscope which uses the cstag command.
vim searches cscope database(s) first, followed by tag file(s) if cscope did not
return any matches. Set vim's csto variable to 1 if you'd like vim to search in
the tag file(s) first: