fix a Lua 5.0 syntax that was deprecated in 5.1

luaL_reg is now renamed to luaL_Reg. Lua 5.2 does not know about
the old name anymore, Lua 5.1.x had backward compatibility.

blitbuffer.c

@@ -366,12 +366,12 @@ static int paintRect(lua_State *L) {
 	return 0;
 }
 
-static const struct luaL_reg blitbuffer_func[] = {
+static const struct luaL_Reg blitbuffer_func[] = {
 	{"new", newBlitBuffer},
 	{NULL, NULL}
 };
 
-static const struct luaL_reg blitbuffer_meth[] = {
+static const struct luaL_Reg blitbuffer_meth[] = {
 	{"getWidth", getWidth},
 	{"getHeight", getHeight},
 	{"blitFrom", blitToBuffer},

djvu.c

@@ -327,12 +327,12 @@ static int drawPage(lua_State *L) {
 	return 0;
 }
 
-static const struct luaL_reg djvu_func[] = {
+static const struct luaL_Reg djvu_func[] = {
 	{"openDocument", openDocument},
 	{NULL, NULL}
 };
 
-static const struct luaL_reg djvudocument_meth[] = {
+static const struct luaL_Reg djvudocument_meth[] = {
 	{"openPage", openPage},
 	{"getPages", getNumberOfPages},
 	{"getTOC", getTableOfContent},
@@ -341,7 +341,7 @@ static const struct luaL_reg djvudocument_meth[] = {
 	{NULL, NULL}
 };
 
-static const struct luaL_reg djvupage_meth[] = {
+static const struct luaL_Reg djvupage_meth[] = {
 	{"getSize", getPageSize},
 	{"getUsedBBox", getUsedBBox},
 	{"close", closePage},

drawcontext.c

@@ -88,7 +88,7 @@ static int dcGetGamma(lua_State *L) {
 	return 1;
 }
 
-static const struct luaL_reg drawcontext_meth[] = {
+static const struct luaL_Reg drawcontext_meth[] = {
 	{"setRotate", dcSetRotate},
 	{"getRotate", dcGetRotate},
 	{"setZoom", dcSetZoom},
@@ -100,7 +100,7 @@ static const struct luaL_reg drawcontext_meth[] = {
 	{NULL, NULL}
 };
 
-static const struct luaL_reg drawcontext_func[] = {
+static const struct luaL_Reg drawcontext_func[] = {
 	{"new", newDrawContext},
 	{NULL, NULL}
 };

einkfb.c

@@ -203,12 +203,12 @@ static int einkSetOrientation(lua_State *L) {
 }
 
 
-static const struct luaL_reg einkfb_func[] = {
+static const struct luaL_Reg einkfb_func[] = {
 	{"open", openFrameBuffer},
 	{NULL, NULL}
 };
 
-static const struct luaL_reg einkfb_meth[] = {
+static const struct luaL_Reg einkfb_meth[] = {
 	{"close", closeFrameBuffer},
 	{"__gc", closeFrameBuffer},
 	{"refresh", einkUpdate},

ft.c

@@ -181,7 +181,7 @@ static int doneFace(lua_State *L) {
 	return 0;
 }
 
-static const struct luaL_reg ft_face_meth[] = {
+static const struct luaL_Reg ft_face_meth[] = {
 	{"renderGlyph", renderGlyph},
 	{"hasKerning", hasKerning},
 	{"getKerning", getKerning},
@@ -190,7 +190,7 @@ static const struct luaL_reg ft_face_meth[] = {
 	{NULL, NULL}
 };
 
-static const struct luaL_reg ft_func[] = {
+static const struct luaL_Reg ft_func[] = {
 	{"newFace", newFace},
 	{"newBuiltinFace", newBuiltinFace},
 	{NULL, NULL}

input.c

@@ -144,7 +144,7 @@ static int waitForInput(lua_State *L) {
 #endif
 }
 
-static const struct luaL_reg input_func[] = {
+static const struct luaL_Reg input_func[] = {
 	{"open", openInputDevice},
 	{"closeAll", closeInputDevices},
 	{"waitForEvent", waitForInput},

pdf.c

@@ -274,12 +274,12 @@ static int drawPage(lua_State *L) {
 	return 0;
 }
 
-static const struct luaL_reg pdf_func[] = {
+static const struct luaL_Reg pdf_func[] = {
 	{"openDocument", openDocument},
 	{NULL, NULL}
 };
 
-static const struct luaL_reg pdfdocument_meth[] = {
+static const struct luaL_Reg pdfdocument_meth[] = {
 	{"openPage", openPage},
 	{"getPages", getNumberOfPages},
 	{"getTOC", getTableOfContent},
@@ -288,7 +288,7 @@ static const struct luaL_reg pdfdocument_meth[] = {
 	{NULL, NULL}
 };
 
-static const struct luaL_reg pdfpage_meth[] = {
+static const struct luaL_Reg pdfpage_meth[] = {
 	{"getSize", getPageSize},
 	{"getUsedBBox", getUsedBBox},
 	{"close", closePage},

util.c

@@ -46,7 +46,7 @@ static int utf8charcode(lua_State *L) {
 	return 1;
 }
 
-static const struct luaL_reg util_func[] = {
+static const struct luaL_Reg util_func[] = {
 	{"gettime", gettime},
 	{"utf8charcode", utf8charcode},
 	{NULL, NULL}