Mark functions as __dead2 in order to help the LLVM static checker

understand which code paths aren't possible.

This commit eliminates 117 false positive bug reports of the form
"allocate memory; error out if pointer is NULL; use pointer".

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/echo/echo.c b/bin/echo/echo.c
index 45d9d7e..68ff581 100644
--- a/bin/echo/echo.c
+++ b/bin/echo/echo.c
@@ -55,7 +55,7 @@ __FBSDID("$FreeBSD$");
  * Report an error and exit.
  * Use it instead of err(3) to avoid linking-in stdio.
  */
-static void
+static __dead2 void
 errexit(const char *prog, const char *reason)
 {
 	char *errstr = strerror(errno);