Fix regression in pyparsing 3.1.1

See the following link for further details:

https://github.com/eerimoq/asn1tools/issues/167

Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>

pyparsing-0001-Avoid-assigning-an-empty-error-message-to-delegated-.patch

@@ -0,0 +1,20 @@
+From: InSync <122007197+InSyncWithFoo@users.noreply.github.com>
+Date: Sat, 13 Jan 2024 05:04:57 +0000
+Subject: [PATCH] Avoid assigning an empty error message to delegated parse
+ exception
+
+
+diff --git a/pyparsing/core.py b/pyparsing/core.py
+index 73514ed..fc19d1c 100644
+--- a/pyparsing/core.py
++++ b/pyparsing/core.py
+@@ -4569,7 +4569,8 @@ class ParseElementEnhance(ParserElement):
+                 return self.expr._parse(instring, loc, doActions, callPreParse=False)
+             except ParseBaseException as pbe:
+                 if not isinstance(self, Forward) or self.customName is not None:
+-                    pbe.msg = self.errmsg
++                    if self.errmsg:
++                        pbe.msg = self.errmsg
+                 raise
+         else:
+             raise ParseException(instring, loc, "No expression defined", self)

pyparsing.spec

@@ -7,7 +7,7 @@ Release:        %autorelease
 License:        MIT
 URL:            https://github.com/pyparsing/pyparsing
 Source0:        https://github.com/%{name}/%{name}/archive/%{version}/%{name}-%{version}.tar.gz
-
+Patch1:         pyparsing-0001-Avoid-assigning-an-empty-error-message-to-delegated-.patch
 BuildArch:      noarch
 BuildRequires:  dos2unix