Add --help documentation for --compile-debug.

src/espeak-ng.c

@@ -71,6 +71,10 @@ static const char *help_text =
     "--compile=<voice name>\n"
     "\t   Compile pronunciation rules and dictionary from the current\n"
     "\t   directory. <voice name> specifies the language\n"
+    "--compile-debug=<voice name>\n"
+    "\t   Compile pronunciation rules and dictionary from the current\n"
+    "\t   directory, including line numbers for use with -X.\n"
+    "\t   <voice name> specifies the language\n"
     "--compile-mbrola=<voice name>\n"
     "\t   Compile an MBROLA voice\n"
     "--compile-intonations\n"

src/speak-ng.c

@@ -98,6 +98,10 @@ static const char *help_text =
     "--compile=<voice name>\n"
     "\t   Compile pronunciation rules and dictionary from the current\n"
     "\t   directory. <voice name> specifies the language\n"
+    "--compile-debug=<voice name>\n"
+    "\t   Compile pronunciation rules and dictionary from the current\n"
+    "\t   directory, including line numbers for use with -X.\n"
+    "\t   <voice name> specifies the language\n"
     "--ipa      Write phonemes to stdout using International Phonetic Alphabet\n"
     "--path=\"<path>\"\n"
     "\t   Specifies the directory containing the espeak-data directory\n"