An in-line Python script, while flexible, is arguably
more complex and less stable than the long-lived `grep`,
`awk`, and `printf`. Make use of these simple tools
to display a column-aligned table of target and description
help output.
Also, the first target that appears in a Makefile is considered
the default (when no target is specified on the command-line).
However, despite it's name, the `default` target was not listed
first. Fix this, and redefine "default" target to "all" as
intended, instead of "help".
Lastly, add a small workaround for a vim syntax-hilighting bug.
Signed-off-by: Chris Evich <cevich@redhat.com>