cmd/help-cmd.py: Use BUP_MAIN_EXE to invoke the correct bup.

Signed-off-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/cmd/help-cmd.py b/cmd/help-cmd.py
index 5336f3f322aa556d773d4be55e9864271770f381..b22a68f62c828510f046ca91aef0483ba5ad2d22 100755 (executable)
--- a/cmd/help-cmd.py
+++ b/cmd/help-cmd.py
@@ -10,7 +10,7 @@ o = options.Options('bup help', optspec)
 
 if len(extra) == 0:
     # the wrapper program provides the default usage string
-    os.execvp('bup', ['bup'])
+    os.execvp(os.environ['BUP_MAIN_EXE'], ['bup'])
 elif len(extra) == 1:
     docname = (extra[0]=='bup' and 'bup' or ('bup-%s' % extra[0]))
     exe = sys.argv[0]