src/Allwmake: Update the location of global.o

Resolves bug-report http://bugs.openfoam.org/view.php?id=2120

src/Allwmake

@@ -21,7 +21,7 @@ wmakeCheckPwd "$WM_PROJECT_DIR/src" || {
 set -x
 
 # Update OpenFOAM version strings if required
-wmakePrintBuild -check || /bin/rm -f OpenFOAM/Make/*/global.? 2>/dev/null
+wmakePrintBuild -check || wrmo OpenFOAM/global/global.o 2>/dev/null
 
 wmakeLnInclude OpenFOAM
 wmakeLnInclude OSspecific/${WM_OSTYPE:-POSIX}