patch 8.1.1281: cannot specify a count with :chistory

Problem:    Cannot specify a count with :chistory.
Solution:   Add a count to :chistory and :lhistory. (Yegappan Lakshmanan,
            closes #4344)
diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index 9e420b3..37577f7 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -336,8 +336,8 @@
 			RANGE|BUFNAME|COUNT|EXTRA|TRLBAR,
 			ADDR_OTHER),
 EX(CMD_chistory,	"chistory",	qf_history,
-			TRLBAR,
-			ADDR_NONE),
+			RANGE|COUNT|TRLBAR,
+			ADDR_UNSIGNED),
 EX(CMD_clist,		"clist",	qf_list,
 			BANG|EXTRA|TRLBAR|CMDWIN,
 			ADDR_NONE),
@@ -828,8 +828,8 @@
 			EXTRA|NOTRLCOM|NEEDARG,
 			ADDR_NONE),
 EX(CMD_lhistory,	"lhistory",	qf_history,
-			TRLBAR,
-			ADDR_NONE),
+			RANGE|COUNT|TRLBAR,
+			ADDR_UNSIGNED),
 EX(CMD_ll,		"ll",		ex_cc,
 			RANGE|COUNT|TRLBAR|BANG,
 			ADDR_QUICKFIX),