hg: jigsaw/m2: Rename variable LIB to LIBS to not clash with Windows global env variable LIB

[erik . joelsson]

Changeset: 2ee789e5e0a2
Author:    erikj
Date:      2014-10-20 10:27 +0200
URL:       http://hg.openjdk.java.net/jigsaw/m2/rev/2ee789e5e0a2

Rename variable LIB to LIBS to not clash with Windows global env variable LIB

! make/Main.gmk