Declare capability_name() as returning const char *

Only used as an argument to printf.   Clears gcc warnings:
xrandr.c: In function ‘capability_name’:
xrandr.c:237:2: warning: return discards ‘const’ qualifier from pointer target type [enabled by default]
xrandr.c:239:2: warning: return discards ‘const’ qualifier from pointer target type [enabled by default]
xrandr.c:241:2: warning: return discards ‘const’ qualifier from pointer target type [enabled by default]
xrandr.c:243:2: warning: return discards ‘const’ qualifier from pointer target type [enabled by default]
xrandr.c:245:5: warning: return discards ‘const’ qualifier from pointer target type [enabled by default]

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/xrandr.c b/xrandr.c
index 0e28a0b..872f81a 100644
--- a/xrandr.c
+++ b/xrandr.c
@@ -229,7 +229,7 @@ reflection_name (Rotation rotation)
     return "invalid reflection";
 }
 
-static char *
+static const char *
 capability_name (int cap_bit)
 {
     switch (cap_bit) {