sh: read more profile files.
Differential Revision: https://reviews.freebsd.org/D36505
MFC after: 1 month
(cherry picked from commit 497cdf9673ec53d59634bb78862cd8dea3d5c155)
sh: when loading profile, skip obvious scratch files.
Differential Revision: https://reviews.freebsd.org/D36856
(cherry picked from commit d3890a547d201d1f5043e51baa406ac9d5d3a60a)
sh: when loading profile, read only .sh files.
Reviewers: jilles, eugen_grosbein.net, cy
Subscribers: imp
Differential Revision: https://reviews.freebsd.org/D37034
(cherry picked from commit 8d7221ca2dd5e0b6c633761b314cffed82ddca72)