Fixed various Undefined Behavior occurrences.

Conditionally uninitialized:
 - builtin_commandline.cpp:577
 - expand.cpp:869
 - parse_util.cpp:1036

Initialization of POD structs:
 - event.cpp:61
 - autoload.cpp:22

References used with va_start:
 - common.cpp:608:18

Found with clang-3.4's awesome -Wconditional-uninitialized,
-Wmissing-field-initializers and -Wvarargs.

1 files changed, 1 insertions, 1 deletions

diff --git a/common.cpp b/common.cpp
index 08e8d7a1..02591212 100644
--- a/common.cpp
+++ b/common.cpp
@@ -599,7 +599,7 @@ bool contains_internal(const wchar_t *a, ...)
 }
 
 /* wcstring variant of contains_internal. The first parameter is a wcstring, the rest are const wchar_t* */
-__sentinel bool contains_internal(const wcstring &needle, ...)
+__sentinel bool contains_internal(const wcstring needle, ...)
 {
     const wchar_t *arg;
     va_list va;