patch 7.4.2033
Problem:    'cscopequickfix' option does not accept new value "a".
Solution:   Adjust list of command characters. (Ken Takata)
diff --git a/src/option.h b/src/option.h
index 6fba8b8..8f75993 100644
--- a/src/option.h
+++ b/src/option.h
@@ -429,7 +429,7 @@
 EXTERN int	p_csre;		/* 'cscoperelative' */
 # ifdef FEAT_QUICKFIX
 EXTERN char_u	*p_csqf;	/* 'cscopequickfix' */
-#  define	CSQF_CMDS   "sgdctefi"
+#  define	CSQF_CMDS   "sgdctefia"
 #  define	CSQF_FLAGS  "+-0"
 # endif
 EXTERN int	p_cst;		/* 'cscopetag' */