patch 8.1.2058: function for ex command is named inconsistently

Problem:    Function for ex command is named inconsistently.
Solution:   Rename do_marks() to ex_marks().
diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index 2490b54..09d62a9 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -928,7 +928,7 @@
 EXCMD(CMD_mapclear,	"mapclear",	ex_mapclear,
 	EX_EXTRA|EX_BANG|EX_TRLBAR|EX_CMDWIN,
 	ADDR_NONE),
-EXCMD(CMD_marks,	"marks",	do_marks,
+EXCMD(CMD_marks,	"marks",	ex_marks,
 	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
 	ADDR_NONE),
 EXCMD(CMD_match,	"match",	ex_match,
diff --git a/src/mark.c b/src/mark.c
index 8a18040..a77e7b9 100644
--- a/src/mark.c
+++ b/src/mark.c
@@ -699,7 +699,7 @@
  * print the marks
  */
     void
-do_marks(exarg_T *eap)
+ex_marks(exarg_T *eap)
 {
     char_u	*arg = eap->arg;
     int		i;
diff --git a/src/proto/mark.pro b/src/proto/mark.pro
index 602bfa2..a28fa9a 100644
--- a/src/proto/mark.pro
+++ b/src/proto/mark.pro
@@ -13,7 +13,7 @@
 int check_mark(pos_T *pos);
 void clrallmarks(buf_T *buf);
 char_u *fm_getname(fmark_T *fmark, int lead_len);
-void do_marks(exarg_T *eap);
+void ex_marks(exarg_T *eap);
 void ex_delmarks(exarg_T *eap);
 void ex_jumps(exarg_T *eap);
 void ex_clearjumps(exarg_T *eap);
diff --git a/src/version.c b/src/version.c
index 3ed4c80..1bfe75c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2058,
+/**/
     2057,
 /**/
     2056,