[PATCH] [PARSER] Remove backslash before } in double-quotes in variable

[Jilles Tjoelker <jilles@stack.nl>]

The backslash prevents the closing brace from terminating the
substitution, therefore it should be removed.

FreeBSD sh test expansion/plus-minus2.0 starts working, no other tests
are affected.

Example:
  printf "%s\n" ${$+\}} ${$+"\}"} "${$+\}}"
should print } three times, without backslashes.
---
 src/parser.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/parser.c b/src/parser.c
index be20ff7..25f22fd 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -916,6 +916,9 @@ readtoken1(int firstc, char const *syntax, char *eofmark, int striptabs)
 						c != '$' && (
 							c != '"' ||
 							eofmark != NULL
+						) && (
+							c != '}' ||
+							varnest == 0
 						)
 					) {
 						USTPUTC('\\', out);
-- 
1.7.3.2