[FIX #307] startup script now sets the OSG plugin path according to libosgDB's path

resources/platformDependent/qt4gui/linux/bin/openwalnut

@@ -27,7 +27,7 @@ export LC_ALL=C
 # If the user has installed OSG manually into a non-standard location, we need to set some OSG paths.
 # This command uses libopenwalnuts dependencies to find the libosgDB directory.
 # NOTE: if this command fails, script will continue execution
-export OSG_LIBRARY_PATH=$(dirname `ldd lib/libopenwalnut.so | grep "libosgDB" | awky '{print $3;}'` 2> /dev/null)
+export OSG_LIBRARY_PATH=$(dirname `ldd lib/libopenwalnut.so | grep "libosgDB" | awk '{print $3;}'` 2> /dev/null)
 
 # Check if the user has set $OPENWALNUT_USEOPTIMUS to an executable
 runner=