plan9front contains several identical files with identical names except for case. These duplicates are possibly unnecessary, and additionally prevent the repository from being cloned on a case-sensitive filesystem.

The relevant identical, similarly named files are:

sys/lib/postscript/troff/Hx and sys/lib/postscript/troff/HX sys/lib/troff/font/devutf/Hb and sys/lib/troff/font/devutf/HB sys/lib/troff/font/devutf/Hi and sys/lib/troff/font/devutf/HI sys/lib/troff/font/devutf/Hx and sys/lib/troff/font/devutf/HX sys/lib/troff/font/devutf/charlib/lH and sys/lib/troff/font/devutf/charlib/LH sys/lib/troff/font/devutf/charlib/rc and sys/lib/troff/font/devutf/charlib/RC sys/lib/troff/font/devutf/charlib/rh and sys/lib/troff/font/devutf/charlib/rH sys/src/cmd/postscript/devpost.add/c1 and sys/src/cmd/postscript/devpost.add/C1 sys/src/cmd/postscript/devpost.add/c2 and sys/src/cmd/postscript/devpost.add/C2 sys/src/cmd/postscript/devpost.add/c3 and sys/src/cmd/postscript/devpost.add/C3

Unless they are critical, duplicate files should be removed.

the files are character names and used by tr2post.