[egs] use bash to run sed instead of the sed shebang (kaldi-asr#4075)

Co-authored-by: Jan 'Yenda' Trmal <jtrmal@apptek.com>

egs/fame/s5/local/wer_hyp_filter

@@ -1,2 +1,4 @@
-#!/bin/sed -f
+#!/usr/bin/env bash
+sed '
 s:<UNK>::g
+'

egs/fame/s5/local/wer_output_filter

@@ -1,2 +1,4 @@
-#!/bin/sed -f
+#!/usr/bin/env bash
+sed '
 s:<UNK>::g
+'

egs/fame/s5/local/wer_ref_filter

@@ -1,2 +1,4 @@
-#!/bin/sed -f
+#!/usr/bin/env bash
+sed '
 s:<UNK>::g
+'

egs/fisher_callhome_spanish/s5/local/wer_output_filter

@@ -1,5 +1,7 @@
-#!/bin/sed -f
+#!/usr/bin/env bash
+sed '
 s:\[laughter\]::g
 s:\[noise\]::g
 s:\[oov\]::g
 s:<UNK>::g
+'

egs/gale_arabic/s5c/local/wer_output_filter

@@ -1,4 +1,6 @@
-#!/bin/sed -f
+#!/usr/bin/env bash
+sed '
 s/@@ //g
 s/<sil>//g
 s/<UNK>//g
+'

egs/wsj/s5/local/wer_hyp_filter

@@ -1,4 +1,5 @@
-#!/bin/sed -f
+#!/usr/bin/env bash
+sed '
 s:<NOISE>::g
 s:<SPOKEN_NOISE>::g
 s:<UNK>::g
@@ -8,4 +9,5 @@ s/-HOLDER/HOLDER/g
 s/COMPAIGN/CAMPAIGN/g
 s/APPROACHES-/APPROACHES/g
 s/RESEACHERS/RESEARCHERS/g
+'
 

egs/wsj/s5/local/wer_output_filter

@@ -1,4 +1,5 @@
-#!/bin/sed -f
+#!/usr/bin/env bash
+sed '
 s:<NOISE>::g
 s:<SPOKEN_NOISE>::g
 s:<UNK>::g
@@ -8,4 +9,4 @@ s/-HOLDER/HOLDER/g
 s/COMPAIGN/CAMPAIGN/g
 s/APPROACHES-/APPROACHES/g
 s/RESEACHERS/RESEARCHERS/g
-
+'

egs/wsj/s5/local/wer_ref_filter

@@ -1,4 +1,5 @@
-#!/bin/sed -f
+#!/usr/bin/env bash
+sed '
 s:<NOISE>::g
 s:<SPOKEN_NOISE>::g
 s:<UNK>::g
@@ -8,4 +9,5 @@ s/-HOLDER/HOLDER/g
 s/COMPAIGN/CAMPAIGN/g
 s/APPROACHES-/APPROACHES/g
 s/RESEACHERS/RESEARCHERS/g
+'