Combine 2 shift calls into one.

svn path=/main/trunk/; revision=15059
diff --git a/bin/ebuild-helpers/ecompress b/bin/ebuild-helpers/ecompress
index c6e0fc5..ecf362c 100755
--- a/bin/ebuild-helpers/ecompress
+++ b/bin/ebuild-helpers/ecompress
@@ -26,8 +26,7 @@
 # new_args: global array used to return revised arguments
 decompress_args() {
 	local suffix=$1 binary=$2
-	shift
-	shift
+	shift 2
 
 	# Initialize the global new_args array.
 	new_args=()