t4017 (diff-retval): replace manual exit code check with test_expect_code

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index d89ec324855841ebe2c76482f3c34350343523a3..dab0a78fa890d0c0cd193d89b7f4ac9ed19fb001 100644 (file)
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -191,11 +191,11 @@ OPTIONS
 Examples
 --------
 
-git grep 'time_t' -- '*.[ch]'::
+git grep {apostrophe}time_t{apostrophe} \-- {apostrophe}*.[ch]{apostrophe}::
        Looks for `time_t` in all tracked .c and .h files in the working
        directory and its subdirectories.
 
-git grep -e \'#define\' --and \( -e MAX_PATH -e PATH_MAX \)::
+git grep -e {apostrophe}#define{apostrophe} --and \( -e MAX_PATH -e PATH_MAX \)::
        Looks for a line that has `#define` and either `MAX_PATH` or
        `PATH_MAX`.