patch 8.2.4859: wget2 files are not recognized

Problem:    wget2 files are not recognized.
Solution:   Add patterns to recognize wget2. (Doug Kearns)
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 15a4a7b..9ce274c 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -592,6 +592,7 @@
     \ 'wast': ['file.wast', 'file.wat'],
     \ 'webmacro': ['file.wm'],
     \ 'wget': ['.wgetrc', 'wgetrc'],
+    \ 'wget2': ['.wget2rc', 'wget2rc'],
     \ 'winbatch': ['file.wbt'],
     \ 'wml': ['file.wml'],
     \ 'wsh': ['file.wsf', 'file.wsc'],
diff --git a/src/version.c b/src/version.c
index 511e3d3..5cbdf3f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4859,
+/**/
     4858,
 /**/
     4857,