Improve portability of shebang

Change-Id: I90a3554de6450c5a573477d972fdbf1ca328008d
diff --git a/script/tei2korapxml b/script/tei2korapxml
index 239f6bb..d2c5fb9 100755
--- a/script/tei2korapxml
+++ b/script/tei2korapxml
@@ -1,5 +1,4 @@
-##!/usr/local/bin/perl -w
-##!/usr/local/bin/perl -w -C 7 # STDIN, STDOUT and STDERR will be in UTF-8 (see 'man perlrun')
+#!/usr/bin/env perl
 
 ## see TODOs
 
@@ -13,7 +12,6 @@
 ###    retr_info) and TODO: also contains not only text inside s-tags (e.g.: <label><hi rend="it bo">Ludwig Pietsch (1824-1911):</hi></label><item><s>Journalist ...)
 ###
 
-
 use 5.012;
 
 use strict;