patch 8.2.0058: running tests changes ~/.viminfo

Problem:    Running tests changes ~/.viminfo.
Solution:   Make 'viminfo' empty when summarizing tests results. (closes #5414)
diff --git a/src/testdir/summarize.vim b/src/testdir/summarize.vim
index 9cf3f69..4e41352 100644
--- a/src/testdir/summarize.vim
+++ b/src/testdir/summarize.vim
@@ -1,6 +1,7 @@
 if 1
   " This is executed only with the eval feature
   set nocompatible
+  set viminfo=
   func Count(match, type)
     if a:type ==# 'executed'
       let g:executed += (a:match+0)
diff --git a/src/version.c b/src/version.c
index 885e6bf..5c27a50 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    58,
+/**/
     57,
 /**/
     56,