Set escapeBackslash for fabric.mod.json variable expansion

Author: YoshiRulz

build.gradle

@@ -45,7 +45,9 @@ processResources {
 	inputs.property "version", project.version
 
 	filesMatching("fabric.mod.json") {
-		expand "version": project.version
+		expand("version": project.version) {
+			escapeBackslash = true
+		}
 	}
 }
 
@@ -85,4 +87,4 @@ publishing {
 		// The repositories here will be used for publishing your artifact, not for
 		// retrieving dependencies.
 	}
-}
+}