Clean up mirror support test
SubversionDownloadStrategy: fix pathname concatenation

Fixes #19066.
libxmp 4.0.4
xmp 4.0.2
SubversionDownloadStrategy: *really* fix pathname concatenation
scsh: add HEAD

Closes #19071.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
jenkins 1.510

Closes #19072.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
dart 21094

Closes #19073.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
ezlupdate: update download URL

Closes #19075.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
ios-webkit-debug-proxy 1.1

Closes #19079.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
adobe-air-sdk 3.7

Closes #19076.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
Add an alias to gmake in superenv

I had a luarock explicitly look ONLY for gmake, FFS.

This should be safe.
Luarocks caveats
Add `brew sh` to the manpage
New formula: libwebsockets-1.22

Libwebsockets is the main C library implementation of the latest websockets protocol.

Refs #16221.
Revert "json-c 0.11"

Apparently the shared library has been split into two libraries on 0.11,
which breaks things that are dependent on the old structure (e.g.
postgis).

See #19068.

This reverts commit a37b4561a6f1664888568ad4c0c44e44d38bee18.
Fix man page formatting
Simplify these tests
Check existence rather than rescue exceptions
libgpg-error: add mirror

Closes #19091.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>