libc/newlib: fix typo in "bump version to 2.1.0"

Fix a typo in the commit http://crosstool-ng.org/hg/crosstool-ng/rev/b966620c7b1e

Signed-off-by: "Daniel Zimmermann" netzimme@gmail.com
Message-Id: <f2dbd80da6affb11089a.1388669655@haus-VirtualBox>
Patchwork-Id: 306129

 This is NOT the official version of dialog.  This version has been

 significantly modified from the original.  It is for use by the Linux

 kernel configuration script.  Please do not bother Savio Lam with 

 questions about this program.