Merge bitcoin/bitcoin#29585: contrib: list other binaries in manpage output

7c3ac59 contrib: list other binaries in manpage output (fanquake)

Pull request description:

  Add a `SEE ALSO` section to the manpages.

  Master:
  ![master](https://github.com/bitcoin/bitcoin/assets/863730/da6f0151-e43a-4578-983d-4f2def80a8eb)

  This PR:
  ![pr](https://github.com/bitcoin/bitcoin/assets/863730/d57a1c9a-50c7-4f1a-834e-0f8af8520921)

  Should be enough to close #29558.

ACKs for top commit:
  jarolrod:
    tACK 7c3ac59
  willcl-ark:
    ACK 7c3ac59
  pablomartin4btc:
    utACK 7c3ac59
  laanwj:
    Code review ACK 7c3ac59

Tree-SHA512: 0df13ed5d736aa514a1192115728314fc676714f4cb9131f37b5d9a9bfc8f85f98c21b859d6b62745211f3de16b33ff60888e7f6a4eca66fc0c52442503f4336

Author: fanquake

contrib/devtools/gen-manpages.py

@@ -62,6 +62,10 @@
     # Copyright is the same for all binaries, so just use the first.
     footer.write('[COPYRIGHT]\n')
     footer.write('\n'.join(versions[0][2]).strip())
+    # Create SEE ALSO section
+    footer.write('\n[SEE ALSO]\n')
+    footer.write(', '.join(s.rpartition('/')[2] + '(1)' for s in BINARIES))
+    footer.write('\n')
     footer.flush()
 
     # Call the binaries through help2man to produce a manual page for each of them.