pwmc: Remove duplicate history items before appending.
tree414719a3371ab8fb0208e977fc817413c7083f84
-rw-r--r-- 17989 COPYING
-rw-r--r-- 9416 INSTALL
-rw-r--r-- 773 Makefile.am
-rw-r--r-- 2293 NEWS
-rw-r--r-- 2221 README
-rw-r--r-- 2031 README.SSH
-rw-r--r-- 335 TODO
-rwxr-xr-x 2443 autogen.sh
-rw-r--r-- 9163 configure.ac
drwxr-xr-x - debian
drwxr-xr-x - doc
-rw-r--r-- 384 libpwmd-8.0.pc.in
drwxr-xr-x - m4
drwxr-xr-x - po
drwxr-xr-x - src