Alexander Kabaev dc0f86a25d Use '_end' symbol instead of 'end' to initialize minbrk and curbrk
variables. Both symbols are set to the same value by the linker,
and _end symbol has less chances to clash with application defined
global symbols.

alpha, ia64 and sparc64 ports already use _end, i386 is now
consistent with them.

Reviewed by:	bde
Approved by:	obrien
Reported by:	pirzyk
2002-08-08 17:28:07 +00:00
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