parser: Remove xmlErrEncodingInt

Convert the last user to xmlFatalErr.

error.c

@@ -1175,6 +1175,9 @@ xmlErrString(xmlParserErrors code) {
         case XML_ERR_UNSUPPORTED_ENCODING:
             errmsg = "Unsupported encoding";
             break;
+        case XML_ERR_INVALID_CHAR:
+            errmsg = "Invalid character";
+            break;
 
         case XML_IO_UNKNOWN:
             errmsg = "Unknown IO error"; break;

parserInternals.c

@@ -338,23 +338,6 @@ xmlFatalErr(xmlParserCtxtPtr ctxt, xmlParserErrors code, const char *info)
     }
 }
 
-/**
- * xmlErrEncodingInt:
- * @ctxt:  an XML parser context
- * @error:  the error number
- * @msg:  the error message
- * @val:  an integer value
- *
- * n encoding error
- */
-static void LIBXML_ATTR_FORMAT(3,0)
-xmlErrEncodingInt(xmlParserCtxtPtr ctxt, xmlParserErrors error,
-                  const char *msg, int val)
-{
-    xmlCtxtErr(ctxt, NULL, XML_FROM_PARSER, error, XML_ERR_FATAL,
-               NULL, NULL, NULL, val, msg, val);
-}
-
 /**
  * xmlIsLetter:
  * @c:  an unicode character (int)
@@ -766,8 +749,8 @@ xmlCurrentChar(xmlParserCtxtPtr ctxt, int *len) {
                      * TODO: Null bytes should be handled by callers,
                      * but this can be tricky.
                      */
-                    xmlErrEncodingInt(ctxt, XML_ERR_INVALID_CHAR,
-                            "Char 0x0 out of allowed range\n", c);
+                    xmlFatalErr(ctxt, XML_ERR_INVALID_CHAR,
+                            "Char 0x0 out of allowed range\n");
                 }
             } else {
                 *len = 1;

result/errors/trailing-null-2.xml.ent

@@ -1,4 +1,5 @@
-./test/errors/trailing-null-2.xml:1: parser error : Char 0x0 out of allowed range
+./test/errors/trailing-null-2.xml:1: parser error : Invalid character: Char 0x0 out of allowed range
+
 <d>
    ^
 ./test/errors/trailing-null-2.xml:1: parser error : PCDATA invalid Char value 0

result/errors/trailing-null-2.xml.err

@@ -1,4 +1,5 @@
-./test/errors/trailing-null-2.xml:1: parser error : Char 0x0 out of allowed range
+./test/errors/trailing-null-2.xml:1: parser error : Invalid character: Char 0x0 out of allowed range
+
 <d>
    ^
 ./test/errors/trailing-null-2.xml:1: parser error : PCDATA invalid Char value 0

result/errors/trailing-null-2.xml.str

@@ -1,4 +1,5 @@
-./test/errors/trailing-null-2.xml:1: parser error : Char 0x0 out of allowed range
+./test/errors/trailing-null-2.xml:1: parser error : Invalid character: Char 0x0 out of allowed range
+
 <d>
    ^
 ./test/errors/trailing-null-2.xml:1: parser error : PCDATA invalid Char value 0