patch 8.1.1237: error for using "compl", reserved word in C++

Problem:    Error for using "compl", reserved word in C++.
Solution:   Rename to "complp". (suggestion by Ken Takata)
diff --git a/src/proto/usercmd.pro b/src/proto/usercmd.pro
index 45ae3e7..a7d0ccc 100644
--- a/src/proto/usercmd.pro
+++ b/src/proto/usercmd.pro
@@ -1,5 +1,5 @@
 /* usercmd.c */
-char_u *find_ucmd(exarg_T *eap, char_u *p, int *full, expand_T *xp, int *compl);
+char_u *find_ucmd(exarg_T *eap, char_u *p, int *full, expand_T *xp, int *complp);
 char_u *set_context_in_user_cmd(expand_T *xp, char_u *arg_in);
 char_u *get_user_command_name(int idx);
 char_u *get_user_commands(expand_T *xp, int idx);
@@ -7,12 +7,12 @@
 char_u *get_user_cmd_flags(expand_T *xp, int idx);
 char_u *get_user_cmd_nargs(expand_T *xp, int idx);
 char_u *get_user_cmd_complete(expand_T *xp, int idx);
+int cmdcomplete_str_to_type(char_u *complete_str);
 char *uc_fun_cmd(void);
+int parse_compl_arg(char_u *value, int vallen, int *complp, long *argt, char_u **compl_arg);
 void ex_command(exarg_T *eap);
 void ex_comclear(exarg_T *eap);
 void uc_clear(garray_T *gap);
 void ex_delcommand(exarg_T *eap);
 void do_ucmd(exarg_T *eap);
-int parse_compl_arg(char_u *value, int vallen, int *complp, long *argt, char_u **compl_arg);
-int cmdcomplete_str_to_type(char_u *complete_str);
 /* vim: set ft=c : */