In function is_alpha, make `-' a legal alphanumeric character. This

is so that font names with `-' are fully parsed, etc...

src/type1/t1load.c

@@ -765,7 +765,7 @@
   static
   int  is_alpha( FT_Byte  c )
   {
-    return ( isalnum( c ) || c == '.' || c == '_' );
+    return ( isalnum( c ) || c == '.' || c == '_' || c == '-' );
   }