help: Perform some suffix merging.

help: Perform some suffix merging.

Change the format strings to change the two-space indent to just one
space.  This looks perfectly fine, and for the normal case enables half
the strings to be dropped as they are now suffixes of other strings.

We also move the strings in help_print_desc into the table, as one of
these is a suffix of the other, but out of the box GCC does not fully
perform this optimization.