Backing out this part of change so Os/2 goes green until we find out why this worked on Javier's machine but not the TB

config/config.mk

@@ -764,7 +764,7 @@ ifeq (,$(filter-out WINNT OS2, $(OS_ARCH)))
 ifeq ($(OS_ARCH),WINNT)
 NSINSTALL	= $(CYGWIN_WRAPPER) $(MOZ_TOOLS_DIR)/bin/nsinstall
 else
-NSINSTALL	= $(MOZ_TOOLS_DIR)/nsinstall
+NSINSTALL	= nsinstall
 endif
 INSTALL		= $(NSINSTALL)
 else