[6.0] 396ac85db Typo

[Dridi Boukelmoune]

commit 396ac85db71e247ab7de1389de5eb5f0a0843f21
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Wed Apr 4 11:56:33 2018 +0000

    Typo

diff --git a/tools/gcov_digest.py b/tools/gcov_digest.py
index fd595c9c9..138f7e8cf 100644
--- a/tools/gcov_digest.py
+++ b/tools/gcov_digest.py
@@ -180,7 +180,7 @@ if __name__ == "__main__":
 	optlist, args = getopt.getopt(sys.argv[1:], "g:o:x:")
 
 	fo = sys.stdout
-	gcovprog = "gcov6
+	gcovprog = "gcov6"
 
 	for f, v in optlist:
 		if f == '-o' and v == '-':