Use space instead of dash in DIE_MSG(_ERRNO) macros

emper/Common.hpp

@@ -9,8 +9,8 @@ typedef std::function<void(void)> func_t;
 #define STRINGIFY(x) #x
 #define TOSTRING(x) STRINGIFY(x)
 #define DIE die(__FILE__ ":" TOSTRING(__LINE__), false)
-#define DIE_MSG(x) die(__FILE__ ":" TOSTRING(__LINE__) "-" #x, false)
-#define DIE_MSG_ERRNO(x) die(__FILE__ ":" TOSTRING(__LINE__) "-" #x, true)
+#define DIE_MSG(x) die(__FILE__ ":" TOSTRING(__LINE__) " " #x, false)
+#define DIE_MSG_ERRNO(x) die(__FILE__ ":" TOSTRING(__LINE__) " " #x, true)
 
 #define likely(x)       __builtin_expect(!!(x),1)
 #define unlikely(x)     __builtin_expect(!!(x),0)