vim-patch:8.0.0151,3,4 #7389

vim-patch:8.0.0151
Problem:    To pass buffer content to system() and systemlist() one has to
            first create a string or list.
Solution:   Allow passing a buffer number. (LemonBoy,
            closes vim/vim#1240)
12c4492dd3

vim-patch:8.0.0153
Problem:    system() test fails on MS-Windows.
Solution:   Deal when extra space and CR.
9d9c356517

vim-patch:8.0.0154
Problem:    system() test fails on OS/X.
Solution:   Deal with leading spaces.
31f19ce0a0

src/nvim/version.c

@@ -1281,10 +1281,10 @@ static const int included_patches[] = {
   157,
   156,
   155,
-  // 154,
-  // 153,
+  154,
+  153,
   152,
-  // 151,
+  151,
   150,
   149,
   148,