Fix build sh error

```
/bin/sh: 1: [[: not found
```

Signed-off-by: Dale Haiducek <[email protected]>

Author: dhaiducek

Makefile

@@ -73,8 +73,7 @@ build-binary:
 
 .PHONY: build-release
 build-release:
-	@if [[ $(shell git status --porcelain | wc -l) -gt 0 ]]; \
-		then \
+	@if [ $(shell git status --porcelain | wc -l) -gt 0 ]; then \
 			echo "There are local modifications in the repo" > /dev/stderr; \
 			exit 1; \
 	fi

cmd/PolicyGenerator/main.go

@@ -28,7 +28,7 @@ func main() {
 				Version = info.Main.Version
 			}
 
-			if Version == "" {
+			if Version == "" || Version == "(devel)" {
 				Version = "Unversioned binary"
 			}
 		}