Only show lines that had blame run on them

examples/blame.c

@@ -128,10 +128,11 @@ int main(int argc, char *argv[])
 	while (i < git_blob_rawsize(blob)) {
 		const char *eol = strchr(rawdata+i, '\n');
 		char oid[10] = {0};
-		const git_blame_hunk *hunk = git_blame_get_hunk_byline(blame, line);
 		git_commit *hunkcommit;
 		const git_signature *sig;
+		const git_blame_hunk *hunk = git_blame_get_hunk_byline(blame, line);
 
+		if (hunk) {
 			git_oid_tostr(oid, 10, &hunk->final_commit_id);
 			check(git_commit_lookup(&hunkcommit, repo, &hunk->final_commit_id), "Commit lookup error");
 			sig = git_commit_author(hunkcommit);
@@ -142,8 +143,9 @@ int main(int argc, char *argv[])
 					line,
 					(int)(eol-rawdata-i),
 					rawdata+i);
-
 			git_commit_free(hunkcommit);
+		}
+
 		i = eol - rawdata + 1;
 		line++;
 	}