DrawTextBoxed uses lineSpacing. GetTextLineSpacing.

include/state.h

@@ -9,6 +9,7 @@ typedef struct {
 	bool hasWindow;
 	bool run;
 	bool gcUnload;
+	int lineSpacing; /* We need to store copy here since raylib has it in static. */
 	lua_State* luaState;
 	Vector2 resolution;
 	int logLevelInvalid;

include/text.h

@@ -24,6 +24,7 @@ int ltextDrawTextBoxed( lua_State* L );
 int ltextDrawTextBoxedTinted( lua_State* L );
 /* Text font info functions. */
 int ltextSetTextLineSpacing( lua_State* L );
+int ltextGetTextLineSpacing( lua_State* L );
 int ltextMeasureText( lua_State* L );
 int ltextMeasureTextEx( lua_State* L );
 int ltextGetGlyphIndex( lua_State* L );