OSX Server Distro detection by Shil (http://www.observium.org/forum/index.php/topic,79.0.html)

git-svn-id: http://www.observium.org/svn/observer/trunk@1727 61d68cd4-352d-0410-923a-c4978735b2b8

scripts/distro

@@ -51,6 +51,10 @@ GetVersionFromFile()
                         fi
 #                        OSSTR="${OS} ${DIST} ${REV}(${PSUEDONAME} ${KERNEL} ${MACH})"
                         OSSTR="${DIST} ${REV}"
+		elif [ "${OS}" = "Darwin" ] ; then
+			if [ -f /usr/bin/sw_vers ] ; then
+				OSSTR=`/usr/bin/sw_vers|grep -v Build|sed 's/^.*:.//'| tr "\n" ' '`
+			fi
                 fi
         echo ${OSSTR}