Stick with the following style:
* Header 1 with the module name is in `lowercase`.
* Other headers are in `Sentence case`. Common header names that should
be consistently used are `Aliases`, `Contributing`, `Functions`,
`Settings`, and `Zsh options`.
* The names `Zim` and `Zsh` always appear capitalized, even in the
middle of sentences.
* Prefer
print 'code indented with 4 spaces'
instead of
```zsh
print 'code fenced by lines with three back-ticks'
print 'unless you want syntax highlighting'
```
This change allow arbitrary Zim location path by setting a new
environment variable, ZIM_HOME. If the user does not set it, Zim falls
back to the old "${ZDOTDIR:-${HOME}}/.zim" location.
Closes#203
Fix `uname` calls with `-o` parameter, as this is not BSD compatible.
As per @Eriner, use `uname -a` instead as a "catch-all" parameter.
Fixes#75, Closes#79
Use `$PS4` debugging prompt to generate timestamps, instead of GNU `date`.
This also keeps timestamps and respective command together, something
that `paste` could not guarantee given some commands may have multiple lines.
The prompt timestamp has a precision of 6 decimals. The `printf "%12.9f\n"`
instruction with 9 decimals was kept to keep producing "the **SAME** output".
This could be replaced to `printf "%12.6f\n"` to make the output
smaller.
Also, only the first line of commands with multiple lines are saved, to
keep the output format backwards-compatible.
Closes#84
