Update setcap completion flags

src/_setcap

@@ -42,6 +42,10 @@ _setcap() {
   local curcontext=$curcontext state line expl ret=1
 
   _arguments -C -s \
+    '-r[remove capability from file]' \
+    '--license[display the license info]' \
+    '-f[force setting even when the capability is invalid]' \
+    '-h[show help message and exit]' \
     '-v[verify that the specified capabilities are currently associated with the file]' \
     '-n[set the file capability for use only in a user namespace with this root user ID owner]:rootuid' \
     '-q[make the program less verbose in its output]' \