Update URL's in man pages
Mostly http->https conversions, but also replaces gitweb.fd.o with gitlab.fd.o, and xquartz.macosforge.org with xquartz.org.
Cc: @jeremyhu
Mostly http->https conversions, but also replaces gitweb.fd.o with gitlab.fd.o, and xquartz.macosforge.org with xquartz.org.
Cc: @jeremyhu