Some bugs (?) in LLVM Makefile.rules file

Reading Makefile.rules i found some unclear places in file:

Line 553:
LinkMOdule += -Xlinker -internalize-public-api-file=$(EXPORTED_SYMBOL_FILE)

Maybe it must be LinkModule += ... ?

Line 1283:
DistCheckDir := $(LLVM_OBJ_ROOT)/_distcheckdir

Maybe it must be:
DistCheckDir := $(PROJ_OBJ_ROOT)/_distcheckdir

Vladimir