functions: avoid CR when progress bar is not enabled

Using CT-NG with progress bar disabled, still prints CR ('\r') characters
on the output. When you capture the output to a file as part of an
automated build, it shows extra empty lines.

For example:

------------------------------------------------------------
[INFO ] Performing some trivial sanity checks

[INFO ] Build started 20110404.113619

[INFO ] Building environment variables

[EXTRA] Preparing working directories

[EXTRA] Installing user-supplied crosstool-NG configuration
------------------------------------------------------------

Signed-off-by: Javier Viguera <javier.viguera@digi.com>
(transplanted from cbd07f3dd6e3689a6b971e999aa82d09fb94d515)

diff -durN ltrace-0.5.1.orig/Makefile.in ltrace-0.5.1/Makefile.in

--- ltrace-0.5.1.orig/Makefile.in	2009-03-16 17:24:08.000000000 +0100

+++ ltrace-0.5.1/Makefile.in	2009-03-16 17:43:09.000000000 +0100

@@ -5,6 +5,7 @@

 OS		:= @HOST_OS@

 ARCH		:= $(shell echo "@HOST_ARCH@" |sed -e s/i.86/i386/      \

 						   -e s/sun4u/sparc64/  \

+						   -e s/alpha.*/alpha/  \

 						   -e s/arm.*/arm/      \

 						   -e s/sa110/arm/      \

 						   -e s/ppc64/ppc/      \