build: doc: Add a man page post-processor to build_man.sh

- If there is a "Modules" section, delete it
- If "Detailed Description" is empty, delete "Detailed Description" line
- Reposition SYNOPSIS (with headers that we inserted) to start of page,
  integrating with defined functions to look like other man pages
- Delete all "Definition at line nnn" lines
- Delete lines that make older versions of man o/p an unwanted blank line
For better readability, shell function definitions are separated by blank
lines, and there is a bit of annotation.

Signed-off-by: Duncan Roe <duncan_roe@optusnet.com.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions