[PATCH 1 of 2] patches: move assignment outside the conditional

[Boris Feld]

# HG changeset patch
# User Boris Feld <boris.feld at octobus.net>
# Date 1517923456 -3600
#      Tue Feb 06 14:24:16 2018 +0100
# Node ID eee9cca843bc557274945688ea52e16539d45e67
# Parent  1a31111e6239a2eb841a5dce5e1cf8212c54bf33
# EXP-Topic parallel-patching
# Available At https://bitbucket.org/octobus/mercurial-devel/
#              hg pull https://bitbucket.org/octobus/mercurial-devel/ -r eee9cca843bc
patches: move assignment outside the conditional

Having this movement in its own patch will make the next patch clearer.

diff --git a/mercurial/cext/mpatch.c b/mercurial/cext/mpatch.c
--- a/mercurial/cext/mpatch.c
+++ b/mercurial/cext/mpatch.c
@@ -110,7 +110,8 @@ patches(PyObject *self, PyObject *args)
 		goto cleanup;
 	}
 	out = PyBytes_AsString(result);
-	if ((r = mpatch_apply(out, in, inlen, patch)) < 0) {
+	r = mpatch_apply(out, in, inlen, patch);
+	if (r < 0) {
 		Py_DECREF(result);
 		result = NULL;
 	}