[PATCH] bin: Rely only on the shebang line

Previously ‘automake’ and ‘aclocal’ were handling the case of being
interpreted as a Shell script by using a hack leveraging the fact that
Shell and Perl has a compatible syntax intersection allowing those
scripts to launch ‘perl’ from the shell.

* bin/aclocal.in: Remove cryptic launching hack.
* bin/automake.in: Likewise.
---
 bin/aclocal.in  | 8 +-------
 bin/automake.in | 7 +------
 2 files changed, 2 insertions(+), 13 deletions(-)

diff --git a/bin/aclocal.in b/bin/aclocal.in
index b3715d9c6..722affa55 100644
--- a/bin/aclocal.in
+++ b/bin/aclocal.in
@@ -1,12 +1,6 @@
 #!@PERL@ -w
-# -*- perl -*-
+# aclocal - create aclocal.m4 by scanning configure.ac      -*- perl -*-
 # @configure_input@
-
-eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
-    if 0;
-
-# aclocal - create aclocal.m4 by scanning configure.ac
-
 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
diff --git a/bin/automake.in b/bin/automake.in
index 16fb45182..8aafe4b58 100644
--- a/bin/automake.in
+++ b/bin/automake.in
@@ -1,11 +1,6 @@
 #!@PERL@ -w
-# -*- perl -*-
+# automake - create Makefile.in from Makefile.am            -*- perl -*-
 # @configure_input@
-
-eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
-    if 0;
-
-# automake - create Makefile.in from Makefile.am
 # Copyright (C) 1994-2018 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
-- 
2.16.1