ver_linux: binutils, fix inaccurate output

Current implementation output on Gentoo Linux:
binutils               2.25.1
1.1
2.25.1

Proposed implementation:
Binutils		2.25.1

Tested on:
Gentoo Linux
Debian 6.0.10
Oracle Linux Server release 7.1

Rely on regex to find the version number.
Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

scripts/ver_linux

@@ -25,7 +25,12 @@ awk '/GNU Make/{
 	substr($0,RSTART,RLENGTH))
 }'
 
-echo "binutils               $(ld -v | egrep -o '[0-9]+\.[0-9\.]+')"
+ld -v 2>&1 |
+awk '/[0-9]+([.]?[0-9]+)+/ && !/not found$/{
+	match($0, /[0-9]+([.]?[0-9]+)+/)
+	printf("Binutils\t\t%s\n",
+	substr($0,RSTART,RLENGTH))
+}'
 
 echo -n "util-linux             "
 fdformat --version | awk '{print $NF}' | sed -e s/^util-linux-// -e s/\)$//