Font generation: Fix patch binary path

Author: StarGate01

src/displayapp/fonts/generate.py

@@ -67,7 +67,7 @@ def main():
         subprocess.check_call(line)
         if patches:
             for patch in patches:
-                subprocess.check_call(['/usr/bin/patch', name+'.c', patch])
+                subprocess.check_call(['/usr/bin/env', 'patch', name+'.c', patch])