fixed /share to be /usr/share

CMakeLists.txt

@@ -656,7 +656,7 @@ if (NOT WIN32 AND NOT DPKG_PROGRAM AND NOT APPLE)
     ## Non Debian based Linux building
     # paths
     set(BINDIR "${CMAKE_INSTALL_PREFIX}/usr/bin" CACHE PATH "Where to install binaries")
-    set(DATAROOTDIR "${CMAKE_INSTALL_PREFIX}/share" CACHE PATH "Sets the root of data directories to a non-default location")
+    set(DATAROOTDIR "${CMAKE_INSTALL_PREFIX}/usr/share" CACHE PATH "Sets the root of data directories to a non-default location")
     set(DATADIR "${DATAROOTDIR}/openmw" CACHE PATH "Sets the openmw data directories to a non-default location")
     set(DOCDIR "${DATAROOTDIR}/doc/openmw" CACHE PATH "Sets the doc directory to a non-default location.")
     set(MANDIR "${DATAROOTDIR}/man" CACHE PATH "Where to install manpages")