Implement usage of the string buffer
Use consistent parenthisization
Rewrite find_quote to have less failure
Add some readability whitespace
Simplify and correct end of string case
Add a debugging function
Expand on quotes testing
Improve tests by testing minishell return code
Send minishell stderr to /dev/null
Make debugging printer flush output
Check for including an empty string arg at end
Reorder files passed to diff for more natural output
Correct diff to what the output *should* be
Rearrange helper iterator's style
Properly ignore empty lines
Remove unused type t in arg_parse module
Build out built-in command infrastructure
Implement aecho and exit
Explicitly pass in file channels to builtins
Flush output buffer in aecho