Use formula helper in tests
texinfo: modernize

Closes #35323.

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

Closes #35323.

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

Closes #35324.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
gnu-prolog: add test

Closes #35325.

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

Closes #35326.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
json-c 0.12

Version bump. Added HEAD.
json-c: update 0.12 bottle.
liblwgeom: update 2.1.5 bottle.
libspatialite: update 4.2.0_1 bottle.