run-command: dup_devnull(): guard against syscalls failing

diff --git a/INSTALL b/INSTALL
index fc723b3e7f8be1efcedd254def349a3c6b78d225..2dc3b61d1fe1b675377a6ece96feaddf8a0721ba 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -131,8 +131,9 @@ Issues of note:
          use English. Under autoconf the configure script will do this
          automatically if it can't find libintl on the system.
 
-       - Python version 2.5 or later is needed to use the git-p4
-         interface to Perforce.
+       - Python version 2.4 or later (but not 3.x, which is not
+         supported by Perforce) is needed to use the git-p4 interface
+         to Perforce.
 
  - Some platform specific issues are dealt with Makefile rules,
    but depending on your specific installation, you may not