[hackers] [sbase] Use \< and \> instead of [[:<:]] and [[:>:]] || sin

[git]

commit d134fe65ab69aa2518664abe2dcffdca6ed43f49
Author: sin <s...@2f30.org>
Date:   Thu Jan 22 17:37:52 2015 +0000

    Use \< and \> instead of [[:<:]] and [[:>:]]
    
    musl doesn't seem to support the latter, so use the older SVR4
    word delimiters.

diff --git a/grep.c b/grep.c
index 7b932ca..6f6927e 100644
--- a/grep.c
+++ b/grep.c
@@ -170,7 +170,7 @@ addpattern(const char *pattern)
                         pattern,
                         pattern[strlen(pattern) - 1] == '$' ? "" : "$");
        } else if (!Fflag && wflag) {
-               len = strlen(pattern) + 15 + (Eflag ? 2 : 4);
+               len = strlen(pattern) + 5 + (Eflag ? 2 : 4);
                tmp = malloc(len);
                if (!tmp)
                        enprintf(Error, "malloc:");
@@ -181,7 +181,7 @@ addpattern(const char *pattern)
                if (pattern[strlen(pattern) - 1] == '$')
                        eol = 1;
 
-               snprintf(tmp, len, "%s[[:<:]]%s%.*s%s[[:>:]]%s",
+               snprintf(tmp, len, "%s\\<%s%.*s%s\\>%s",
                         bol ? "^" : "",
                         Eflag ? "(" : "\\(",
                         (int)strlen(pattern) - bol - eol, pattern + bol,