fstools: update to git HEAD

 77c0288 fstools: fix a couple of minor code problems

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/system/fstools/Makefile

@@ -12,9 +12,9 @@ PKG_RELEASE:=$(AUTORELEASE)
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/fstools.git
-PKG_MIRROR_HASH:=3833101859476d5d793cde0a3772464ac49d1e5fd0fce14e101a9c7ed1bb0709
-PKG_SOURCE_DATE:=2021-10-01
-PKG_SOURCE_VERSION:=d3907445b7aa9cbde70d501bd68a5e38db90c6b2
+PKG_MIRROR_HASH:=e4d8fcdf8f83749553be109c7c39141cc4495ac46d476c8d2dc6a0d8dccfb741
+PKG_SOURCE_DATE:=2021-11-16
+PKG_SOURCE_VERSION:=77c02889177c43df8ebe07bce4d55b7f7358118f
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=GPL-2.0