Do not put the architecture between backquotes

Author: guillep

mc/ZeroConf.package/ZeroConfCurrentPlatform.class/instance/generateOperatingSystemDetectionOn..st

@@ -4,7 +4,7 @@ generateOperatingSystemDetectionOn: aStream
 	aStream <<== 'DETECT SYSTEM PROPERTIES'.
 	self generateArchitectureDetectionOn: aStream.
 	aStream cr;
-		<< 'VM_ARCH=`${ARCH}`'; cr;
+		<< 'VM_ARCH=${ARCH}'; cr;
 		<< 'unameOut="$(uname -s)"'; cr;
 		<< 'case "${unameOut}" in'; cr;
 		<< '    Linux*)     OSNAME=Linux;;'; cr;