path_make_canonical mishandles empty string.

Fixes https://github.com/ridiculousfish/fishfish/issues/26

1 files changed, 2 insertions, 2 deletions

diff --git a/path.cpp b/path.cpp
index 3dcfcadd..28f10838 100644
--- a/path.cpp
+++ b/path.cpp
@@ -525,8 +525,8 @@ void path_make_canonical( wcstring &path )
         replace_all(path, L"//", L"/");
     } while (path.size() != size);
     
-    /* Remove trailing slashes */
-    while (size--) {
+    /* Remove trailing slashes, except don't remove the first one */
+    while (size-- > 1) {
         if (path.at(size) != L'/')
             break;
     }