cat.c: correctly prefix 0 for every single hex (!) digit

diff --git a/src/cat.c b/src/cat.c
index e0f866d433e7d18479075e57c57fcf6f509c3ea0..37f60e706138c782885d5fe1b69baa3c34c6ffaa 100644 (file)
--- a/src/cat.c
+++ b/src/cat.c
@@ -6,7 +6,7 @@
 
 #include "general.h"
 
-#define x2(x) (buffer[x] < 10 ? "0" : ""), buffer[x]
+#define x2(x) (buffer[x] <= 0xF ? "0" : ""), buffer[x]
 
 int main() {
        char *filename = NULL;