merges r21099 from trunk into ruby_1_9_1.

	* win32/win32.c (rb_w32_argv_size): if an argument is empty, it's size
	  is 2, not 0, because it will be converted to "".

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1@21127 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/win32/win32.c b/win32/win32.c
index d346a925d..316b69b87 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -715,7 +715,7 @@ rb_w32_argv_size(char *const *argv)
 	    }
 	}
 	len += p - *t + n + 1;
-	if (quote) len += 2;
+	if (p - *t == 0 || quote) len += 2;
     }
     return len;
 }