Bug#876574: unicap FTBFS with gtk-doc-tools 1.26: gtkdoc-mktmpl is no longer available

[Adrian Bunk]

Source: unicap
Version: 0.9.12-2
Severity: serious
Tags: buster sid

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/unicap.html

...
gtk-doc: Rebuilding template files
cd . && gtkdoc-mktmpl --module=libunicap 
/bin/bash: gtkdoc-mktmpl: command not found
Makefile:595: recipe for target 'tmpl-build.stamp' failed
make[4]: *** [tmpl-build.stamp] Error 127