Fix minor windows pedantic warnings.

src/archutils/Unix/Backtrace.cpp

@@ -40,17 +40,25 @@ static const char *itoa(unsigned n)
 static intptr_t xtoi( const char *hex )
 {
 	intptr_t ret = 0;
-	while( 1 )
+	for(;;)
 	{
 		int val = -1;
 		if( *hex >= '0' && *hex <= '9' )
+		{
 			val = *hex - '0';
+		}
 		else if( *hex >= 'A' && *hex <= 'F' )
+		{
 			val = *hex - 'A' + 10;
+		}
 		else if( *hex >= 'a' && *hex <= 'f' )
+		{
 			val = *hex - 'a' + 10;
+		}
 		else
+		{
 			break;
+		}
 		hex++;
 
 		ret *= 16;

src/archutils/Unix/CrashHandler.cpp

@@ -31,17 +31,21 @@ static void safe_print( int fd, ... )
 	va_list ap;
 	va_start( ap, fd );
 
-	while( true )
+	for(;;)
 	{
 		const char *p = va_arg( ap, const char * );
 		if( p == NULL )
+		{
 			break;
+		}
 		size_t len = strlen( p );
 		while( len )
 		{
 			ssize_t result = write( fd, p, strlen(p) );
 			if( result == -1 )
+			{
 				_exit( 1 );
+			}
 			len -= result;
 			p += result;
 		}