coverity/161216: Ensure buf is valid for lifetime of defstr

Depending on the type of argument for input()/inputdialog()'s {text}
argument, defstr may point to buf.  Therefore it needs to be in scope
for the lifetime of defstr.

Also, use a different buffer for the handling of the 3rd argument to
input()/inputdialog().  Although the buffer defstr points to is used
immediately, it avoids potential mishaps if the code changes.

0 files changed, 0 insertions, 0 deletions