os,net: cleanup deprecated @VROOT usages

vlib/net/aasocket.c.v

@@ -3,7 +3,7 @@ module net
 $if windows {
 	// This is mainly here for tcc on windows
 	// which apparently doesnt have this definition
-	#include "@VROOT/vlib/net/ipv6_v6only.h"
+	#include "@VMODROOT/vlib/net/ipv6_v6only.h"
 }
 
 // Select represents a select operation

vlib/net/address_test.v

@@ -7,7 +7,7 @@ $if windows {
 		#include <ws2tcpip.h>
 		#include <afunix.h>
 	} $else {
-		#include "@VROOT/vlib/net/afunix.h"
+		#include "@VMODROOT/vlib/net/afunix.h"
 	}
 } $else {
 	#include <sys/un.h>

vlib/os/os.v

@@ -495,7 +495,6 @@ pub fn walk(path string, f fn (string)) {
 pub fn log(s string) {
 	//$if macos {
 	// Use NSLog() on macos
-	// C.darwin_log(s)
 	//} $else {
 	println('os.log: ' + s)
 	//}

vlib/os/os_darwin.c.v

@@ -3,8 +3,6 @@
 // that can be found in the LICENSE file.
 module os
 
-#include "@VROOT/vlib/os/os_darwin.m"
-
 pub const (
 	sys_write         = 4
 	sys_open          = 5
@@ -14,5 +12,3 @@ pub const (
 	sys_open_nocancel = 398
 	sys_stat64        = 338
 )
-
-fn C.darwin_log(s string)

vlib/os/os_darwin.m

@@ -1,7 +0,0 @@
-/*
-NSString* nsstring(string s);
-
-void darwin_log(string s) {
-	NSLog(nsstring(s));
-}
-*/

vlib/v/fmt/tests/hashstmt_keep.vv

@@ -1,8 +1,8 @@
 // comment above HashStmt
-#flag -I @VROOT/c
+#flag -I @VMODROOT/c
-#flag @VROOT/c/implementation.o
+#flag @VMODROOT/c/implementation.o
 
-#include "@VROOT/c/implementation.h"
+#include "@VMODROOT/c/implementation.h"
 
 // comment between with newlines around
 

vlib/v/tests/init_global_test.v

@@ -1,3 +1,4 @@
+// vtest retry: 4
 import sync
 
 fn one() int {