Fix a string comparison in C++ 11.

Taken from Debian:
https://sources.debian.org/src/dbus-c++/0.9.0-8.1/debian/patches/06_fix_gcc-7_ftbfs.patch/

--- a/src/pipe.cpp
+++ b/src/pipe.cpp
@@ -83,5 +83,5 @@ ssize_t Pipe::read(void *buffer, unsigne
 void Pipe::signal()
 {
   // TODO: ignoring return of read/write generates warning; maybe relevant for eventloop work...
-  ::write(_fd_write, '\0', 1);
+  ::write(_fd_write, "\0", 1);
 }
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<tr><td><span title='2024-08-31 10:42:44 +0200'>2024-08-31</span></td><td><a href='/guix/commit/gnu/packages/openstack.scm?id=ac54023529ace0cc67ea328be06876b25870ff9b'>gnu: python-git-review: Add 'bash' input for 'wrap-program'.</a><span class='msg-avail'>...<span class='msg-tooltip'>It is required for cross-compilation.

* gnu/packages/openstack.scm
(python-git-review)[inputs]: Add 'bash-minimal'.

Signed-off-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
Change-Id: Ib17da31cc7f25d91e12e3cda95cf07a01f6f21d7
</span></span></td><td>Maxime Devos</td></tr>