The file would not be included in the tarball produced by "make dist"
because its name was too long.
* gnu/packages/patches/python2-pygobject-2-gi-info-type-error-domain.patch:
Rename to...
* gnu/packages/patches/python2-pygobject-2-deprecation.patch: ... this.
* gnu/packages/glib.scm (python2-pygobject-2)[source]: Adjust accordingly.
* gnu/local.mk (dist_patch_DATA): Likewise.
