Bump formspec version (#11980)

doc/lua_api.txt

@@ -2271,18 +2271,20 @@ Examples
 Version History
 ---------------
 
-* FORMSPEC VERSION 1:
+* Formspec version 1 (pre-5.1.0):
   * (too much)
-* FORMSPEC VERSION 2:
+* Formspec version 2 (5.1.0):
   * Forced real coordinates
   * background9[]: 9-slice scaling parameters
-* FORMSPEC VERSION 3:
+* Formspec version 3 (5.2.0):
   * Formspec elements are drawn in the order of definition
   * bgcolor[]: use 3 parameters (bgcolor, formspec (now an enum), fbgcolor)
   * box[] and image[] elements enable clipping by default
   * new element: scroll_container[]
-* FORMSPEC VERSION 4:
+* Formspec version 4 (5.4.0):
   * Allow dropdown indexing events
+* Formspec version 5 (5.5.0):
+  * Added padding[] element
 
 Elements
 --------

src/network/networkprotocol.h

@@ -230,7 +230,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
                                // base64-encoded SHA-1 (27+\0).
 
 // See also: Formspec Version History in doc/lua_api.txt
-#define FORMSPEC_API_VERSION 4
+#define FORMSPEC_API_VERSION 5
 
 #define TEXTURENAME_ALLOWED_CHARS "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_.-"