ash: add comment about failures in source builtin. No code changes.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/shell/ash.c b/shell/ash.c
index fbbdb06..edcb7c0 100644 (file)
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -12258,6 +12258,9 @@ dotcmd(int argc, char **argv)
        /* "false; . empty_file; echo $?" should print 0, not 1: */
        exitstatus = 0;
 
+       /* This aborts if file isn't found, which is POSIXly correct.
+        * bash returns exitcode 1 instead.
+        */
        fullname = find_dot_file(argv[1]);
 
        argv += 2;
@@ -12269,6 +12272,9 @@ dotcmd(int argc, char **argv)
                shellparam.p = argv;
        };
 
+       /* This aborts if file can't be opened, which is POSIXly correct.
+        * bash returns exitcode 1 instead.
+        */
        setinputfile(fullname, INPUT_PUSH_FILE);
        commandname = fullname;
        cmdloop(0);