Makefile.am: Rework build of Solaris specific man pages.

git-svn-id: https://svn.code.sf.net/p/smartmontools/code/trunk/smartmontools@3943 4ea69e1a-61f1-4043-bf83-b5c94c648137
smartctl.8.in, smartd.8.in, smartd.conf.5.in: Minor typo and syntax fixes.

git-svn-id: https://svn.code.sf.net/p/smartmontools/code/trunk/smartmontools@3944 4ea69e1a-61f1-4043-bf83-b5c94c648137