Output the right number of backslashes in values.

tools/wineconf

@@ -191,12 +191,12 @@ sub FindWindowsDir {
     }
     $::windir = &ToDos(dirname($winini));
     print "[wine]\n";
-    print "\"windows\" = \"$::windir\"\n";
+    print "\"windows\" = ", &marshall ($::windir), "\n";
     if ($::opt_sysdir) {
-	print "\"system\" = \"$::opt_sysdir\"\n";
+	print "\"system\" = ", &marshall ($::opt_sysdir), "\n";
     }
     else {
-	print "\"system\" = \"$::windir\\SYSTEM\"\n";
+	print "\"system\" = ", &marshall ("$::windir\\SYSTEM"), "\n";
     }
 }
 
@@ -306,7 +306,7 @@ sub ReadAutoexecBat {
 		warn "exist\n";
 	    }
 	}
-	print "\"path\" = \"" . join(";", @::DOSpathlist) . "\"\n";
+	print "\"path\" = ", &marshall (join (";", @::DOSpathlist)), "\n";
     }
     else {
 	# Code status: tested 1.4
@@ -326,15 +326,15 @@ sub ReadAutoexecBat {
 	    $command =~ s%[^/]+$%%;
 	    $::DOSexecdir{&ToDos($command)}++;
 	}
-	print "\"path\" = \"" . 
-	    join(";", 
-		 grep(s%\\$%%, 
-		      sort {$::DOSexecdir{$b} <=> $::DOSexecdir{$a}}
-		      (keys %::DOSexecdir))) . "\"\n";
+	print "\"path\" = " .
+	    &marshall (join(";", 
+			    grep(s%\\$%%, 
+				 sort {$::DOSexecdir{$b} <=> $::DOSexecdir{$a}}
+				 (keys %::DOSexecdir)))) . "\n";
     }
 
     if ($::DOSenv{"temp"} && -d &ToUnix($::DOSenv{"temp"})) {
-	print "\"temp\" = \"" . $::DOSenv{"temp"} . "\"\n";
+	print "\"temp\" = ", &marshall ($::DOSenv{"temp"}), "\n";
     }
     else {
         my $TheTemp;
@@ -351,11 +351,11 @@ sub ReadAutoexecBat {
 	$TheTemp = '/tmp' if (!$TheTemp && -d '/tmp');
 	if ($TheTemp) {
 	    warn "Using $TheTemp\n";
-	    print "\"temp\" = \"$TheTemp\"\n";
+	    print "\"temp\" = ", &marshall ($TheTemp), "\n";
 	}
 	else {
 	    warn "Using C:\\\n";
-	    print "\"temp\" = \"C:\\\"\n";
+	    print "\"temp\" = ", &marshall ("C:\\"), "\n";
 	}
     }
     print "\n";
@@ -427,6 +427,13 @@ sub InsertDefaultFile {
     }
 }
 
+sub marshall {
+    my ($s) = @_;
+    $s =~ s/\\/\\\\/g;
+    return "\"$s\"";
+}
+
+
 sub StandardStuff {
     if (!$::opt_inifile) {
 	&InsertDefaultFile("./wine.ini", "wineconf");