Ensures that the -E or -F option, when used, is the first option
* i.e. grep -oE => grep -E -o
Updates _bash-it-grep to invoke grep with just the provided arguments
* This function was (and still is) unused, but decided this new functionality was actually more useful
Introduces _bash-it-fgrep to invoke grep -F
Removes type -P egrep from the _bash-it-*grep functions
For usages that were already going to be modified, use -F if appropriate
* Does not touch grep usages that may have benefited from -F, but were not otherwise considered for this PR
Adds shellcheck header to modified .bash files that didn't already have it
Sometimes, Makefile won't be completed (as for me on Fedora 25) as soon as bash-it is activated. This completion script can provide a Makefile completion.
