#2722 sblim-gather fails to compile when "-Werror=format-security" flag is used

[Vitezslav Crhonek]

Hello,

sblim-gather fails to compile with GCC when "-Werror=format-security" flag is used. It's because of usage of fprintf/sprintf/printf functions where the format string is not a string literal and there are no format arguments. This may be a security hole if the format string came from untrusted input and contains %n.

Attached patch fixes this issue.

[Dave Heller]

Looks good, thanks. I also updated the makefile so that the flag is included in the default CFLAGS, to prevent future problems.

Commit [544dde]