[7892] avoid multiple levels of quoting in shell script

[gavinsmith0123]

Revision: 7892
          http://svn.sv.gnu.org/viewvc/?view=rev&root=texinfo&revision=7892
Author:   gavin
Date:     2017-07-01 16:21:11 -0400 (Sat, 01 Jul 2017)
Log Message:
-----------
avoid multiple levels of quoting in shell script

Modified Paths:
--------------
    trunk/tp/Texinfo/Convert/XSParagraph/configure.ac

Modified: trunk/tp/Texinfo/Convert/XSParagraph/configure.ac
===================================================================
--- trunk/tp/Texinfo/Convert/XSParagraph/configure.ac   2017-07-01 20:13:09 UTC 
(rev 7891)
+++ trunk/tp/Texinfo/Convert/XSParagraph/configure.ac   2017-07-01 20:21:11 UTC 
(rev 7892)
@@ -15,6 +15,7 @@
 AC_CONFIG_MACRO_DIR([m4])
 
 b='\'
+d='$'
 o='@<:@' dnl quadrigraph for [ - see autoconf documentatoin
 c='@:>@' dnl quadrigraph for ]
 
@@ -26,7 +27,7 @@
 s/^$o^=$c*= *//
 s/^'//
 s/ *; *$//
-s/'$//
+s/'$d//
 s/$b$b/$b//g"
 
 fetch_conf ()