userland/linux: cc_pedantic actually works there and I found a bug with it

path_properties.py

@@ -255,7 +255,6 @@ def get(path):
 
 gnu_extension_properties = {
     'c_std': 'gnu11',
-    'cc_pedantic': False,
     'cxx_std': 'gnu++17'
 }
 # https://cirosantilli.com/linux-kernel-module-cheat#freestanding-programs

userland/linux/mmap_anonymous_touch.c

@@ -29,7 +29,7 @@ void ProcStat_init(ProcStatm *result) {
     }
     if(7 != fscanf(
         f,
-        "%ld %ld %ld %ld %ld %ld %ld",
+        "%lu %lu %lu %lu %lu %lu %lu",
         &(result->size),
         &(result->resident),
         &(result->share),