Invalid sanity check

[David Holmes]

I happened to notice in jdk/make/common/shared/Sanity.gmk:

sane-gcc-compiler:
ifeq ($(PLATFORM), solaris)
   ifndef OPENJDK
     @if [ -r $(GCC_COMPILER_PATH) ]; then \
     ....
	fi
   endif

   ifeq ($(PLATFORM), linux)


Looks to me like there's a misplaced endif there.

David