Fix a tab that somehow became 8 spaces.

Remove parentheses in a return statement to be consistent with the
rest of the file.

Rename sin_pi() in the float version to sin_pif().

Remove large comment that precedes sin_pif().  The comment
duplicates a comment in e_lgamma_r.c where the algorithm
is documented.

Requested by:	bde


git-svn-id: svn+ssh://svn.freebsd.org/base/head@270932 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Add references to vt(4) to further man-pages.

MFC after:	3 days


git-svn-id: svn+ssh://svn.freebsd.org/base/head@270933 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Final patches to the tools used to convert syscons keymaps for use with
vt.

MFC after:	3 days


git-svn-id: svn+ssh://svn.freebsd.org/base/head@270934 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f