Consistency: Make default display a const char *

Yep, `hostname` is a `const char *` too, even though it's potentially
being assigned to. This is
[unintuitive](http://stackoverflow.com/a/9834194/777586), but
intentional.

1 files changed, 1 insertions, 1 deletions

diff --git a/compile b/compile
index 4b8f85e..41d4254 100755
--- a/compile
+++ b/compile
@@ -1 +1 @@
-clang --std=gnu11 -Wall -o xkbcat -lX11 xkbcat.c
+clang --std=gnu11 -pedantic -Wall -o xkbcat -lX11 xkbcat.c