Accepting request 850163 from home:Andreas_Schwab:Factory

- Update to grep 3.6
  * The GREP_OPTIONS environment variable no longer affects grep's behavior.
  * grep's DFA matcher performed an invalid regex transformation
    that would convert an ERE like a+a+a+ to a+a+, which would make
    grep a+a+a+ mistakenly match "aa".
  * grep -P now reports the troublesome input filename upon PCRE execution
    failure.
- werror-return-type.patch: work around gcc bug

OBS-URL: https://build.opensuse.org/request/show/850163
OBS-URL: https://build.opensuse.org/package/show/Base:System/grep?expand=0&rev=108

grep.spec

@@ -17,7 +17,7 @@
 
 
 Name:           grep
-Version:        3.5
+Version:        3.6
 Release:        0
 Summary:        Print lines matching a pattern
 License:        GPL-3.0-or-later
@@ -27,6 +27,7 @@ Source0:        https://ftp.gnu.org/gnu/%{name}/%{name}-%{version}.tar.xz
 Source2:        https://ftp.gnu.org/gnu/%{name}/%{name}-%{version}.tar.xz.sig
 Source3:        https://savannah.gnu.org/project/memberlist-gpgkeys.php?group=grep&download=1#/%{name}.keyring
 Source4:        profile.sh
+Patch0:         werror-return-type.patch
 BuildRequires:  fdupes
 BuildRequires:  makeinfo
 BuildRequires:  pcre-devel
@@ -42,6 +43,7 @@ match to a specified pattern.  By default, grep prints the matching lines.
 
 %prep
 %setup -q
+%patch0 -p1
 
 %build
 %configure \