tacme: free buf in checksha1 - plan9port - [fork] Plan 9 from user space
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       ---
 (DIR) commit ff9d331db494d323bb89a8fe67b96d90b7e60030
 (DIR) parent e4d6099eff8d04d96fd4937bc97631abc5218fcd
 (HTM) Author: Russ Cox <rsc@swtch.com>
       Date:   Sat, 14 Oct 2017 19:50:53 -0400
       
       acme: free buf in checksha1
       
       Thanks to Lorenzo Beretta for noticing.
       
       Diffstat:
         M src/cmd/acme/exec.c                 |       1 +
       
       1 file changed, 1 insertion(+), 0 deletions(-)
       ---
 (DIR) diff --git a/src/cmd/acme/exec.c b/src/cmd/acme/exec.c
       t@@ -651,6 +651,7 @@ checksha1(char *name, File *f, Dir *d)
                buf = emalloc(8192);
                while((n = read(fd, buf, 8192)) > 0)
                        sha1(buf, n, nil, h);
       +        free(buf);
                close(fd);
                sha1(nil, 0, out, h);
                if(memcmp(out, f->sha1, sizeof out) == 0) {