/usr/share/man/man3/glUniform2f.3G.gz is in opengl-4-man-doc 1.0~svn31251-1build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man3/glUniform1f.3G.gz
/usr/share/man/man3/glUniform1f.3G.gz