Replace "internationalize" with "localize" where appropriate

doc/src/sgml/libpq.sgml

@@ -6878,7 +6878,7 @@ myEventProc(PGEventId evtId, void *evtInfo, void *passThrough)
        <primary><envar>PGLOCALEDIR</envar></primary>
       </indexterm>
       <envar>PGLOCALEDIR</envar> sets the directory containing the
-      <literal>locale</> files for message internationalization.
+      <literal>locale</> files for message localization.
      </para>
     </listitem>
    </itemizedlist>

src/interfaces/ecpg/ecpglib/misc.c

@@ -260,7 +260,7 @@ ecpg_log(const char *format,...)
 	if (!simple_debug)
 		return;
 
-	/* internationalize the error message string */
+	/* localize the error message string */
 	intl_format = ecpg_gettext(format);
 
 	/*

src/interfaces/ecpg/preproc/ecpg.header

@@ -67,7 +67,7 @@ struct ECPGtype ecpg_query = {ECPGt_char_variable, NULL, NULL, NULL, {NULL}, 0};
 static void __attribute__((format(PG_PRINTF_ATTRIBUTE, 3, 0)))
 vmmerror(int error_code, enum errortype type, const char *error, va_list ap)
 {
-	/* internationalize the error message string */
+	/* localize the error message string */
 	error = _(error);
 
 	fprintf(stderr, "%s:%d: ", input_filename, yylineno);