tree: add clang-format off labels

When I figure out how to make clang-format ignore struct array
initialisers, I'll get rid of this.

lcl.c

@@ -286,6 +286,8 @@ cl_options(lua_State *L)
 	return 0;
 }
 
+/* clang-format off */
+
 static const luaL_Reg cllib[] = {
 	{"mesg",      cl_mesg},
 	{"error",     cl_error},

lenviron.c

@@ -94,6 +94,8 @@ environ_newindex(lua_State *L)
 	return 0;
 }
 
+/* clang-format off */
+
 static const luaL_Reg mt[] = {
 	{"__index",    environ_index},
 	{"__newindex", environ_newindex},

lextra.c

@@ -54,6 +54,8 @@ extra_sleep(lua_State *L)
 	return 0;
 }
 
+/* clang-format off */
+
 static const luaL_Reg extlib[] = {
 	{"sleep", extra_sleep},
 	{NULL, NULL}

lfs.c

@@ -535,6 +535,8 @@ fs_workdir(lua_State *L)
 	return lfail(L);
 }
 
+/* clang-format off */
+
 static const luaL_Reg fslib[] = {
 	{"basename",    fs_basename},
 	{"copy",        fs_copy},

lprocess.c

@@ -22,7 +22,7 @@
 #define PID_MAX 8 /* rounded to the nearest even number */
 #define PROCESS_MAX 256
 
-/* signals */
+/* clang-format off */
 static const int signals[] = {
 	SIGHUP,
 	SIGINT,
@@ -357,6 +357,8 @@ process_terminate(lua_State *L)
 	return sigsend(L, pid, "SIGTERM");
 }
 
+/* clang-format off */
+
 static const luaL_Reg proclib[] = {
 	{"kill",      process_kill},
 	{"pid",       process_pid},