[hackers] [sbase] Rename variable `dif' to `diff' in comm(1) || sin

[git]

commit fbf71521f15bd9a3080a756e3ef7820b532ea2a8
Author: sin <s...@2f30.org>
Date:   Fri Apr 4 11:05:47 2014 +0100

    Rename variable `dif' to `diff' in comm(1)

diff --git a/comm.c b/comm.c
index b90abb3..694d48c 100644
--- a/comm.c
+++ b/comm.c
@@ -23,7 +23,7 @@ usage(void)
 int
 main(int argc, char *argv[])
 {
-       int i, dif = 0;
+       int i, diff = 0;
        FILE *fp[2];
        char lines[2][LINE_MAX+1];
 
@@ -46,21 +46,21 @@ main(int argc, char *argv[])
        }
 
        for(;;) {
-               if(dif <= 0) {
+               if(diff <= 0) {
                        if(!nextline(lines[0], sizeof(lines[0]),
                                                fp[0], argv[0])) {
                                finish(1, fp[1], argv[1]);
                        }
                }
-               if(dif >= 0) {
+               if(diff >= 0) {
                        if(!nextline(lines[1], sizeof(lines[1]),
                                                fp[1], argv[1])) {
                                finish(0, fp[0], argv[0]);
                        }
                }
-               dif = strcmp(lines[0], lines[1]);
-               dif = CLAMP(dif, -1, 1);
-               printline((2-dif) % 3, lines[MAX(0, dif)]);
+               diff = strcmp(lines[0], lines[1]);
+               diff = CLAMP(diff, -1, 1);
+               printline((2-diff) % 3, lines[MAX(0, diff)]);
        }
 
        return EXIT_SUCCESS;