Add Jim_SetResultFormatted() for simplied messages

Makes creating error messages much simpler
Also convert a couple of long if/else to switch
Also some error message improvements
Also fix some memory leaks

1 files changed, 1 insertions, 3 deletions

diff --git a/jim-aio.c b/jim-aio.c
index 2d67f7c..c40d29e 100644
--- a/jim-aio.c
+++ b/jim-aio.c
@@ -81,9 +81,7 @@ static int JimAioSubCmdProc(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
 static void JimAioSetError(Jim_Interp *interp, Jim_Obj *name)
 {
     if (name) {
-        const char *filename = Jim_GetString(name, NULL);
-        Jim_SetResultString(interp, "", 0);
-        Jim_AppendStrings(interp, Jim_GetResult(interp), filename, ": ", strerror(errno), NULL);
+        Jim_SetResultFormatted(interp, "%#s: %s", name, strerror(errno));
     }
     else {
         Jim_SetResultString(interp, strerror(errno), -1);