patch 8.2.5137: cannot build without the +channel feature

Problem:    Cannot build without the +channel feature. (Dominique Pellé)
Solution:   Add #ifdef around ch_log() calls. (closes #10598)
diff --git a/src/os_unix.c b/src/os_unix.c
index c0293ce..947f46f 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -8323,8 +8323,10 @@
 	timer_created = TRUE;
     }
 
+# ifdef FEAT_JOB_CHANNEL
     ch_log(NULL, "setting timeout timer to %d sec %ld nsec",
 	       (int)interval.it_value.tv_sec, (long)interval.it_value.tv_nsec);
+# endif
     ret = timer_settime(timer_id, 0, &interval, NULL);
     if (ret < 0)
 	semsg(_(e_could_not_set_timeout_str), strerror(errno));
diff --git a/src/regexp_bt.c b/src/regexp_bt.c
index c007b81..f8def10 100644
--- a/src/regexp_bt.c
+++ b/src/regexp_bt.c
@@ -3163,8 +3163,10 @@
     {
 	if (timed_out != NULL)
 	{
+# ifdef FEAT_JOB_CHANNEL
 	    if (!*timed_out)
 		ch_log(NULL, "BT regexp timed out");
+# endif
 	    *timed_out = TRUE;
 	}
 	return TRUE;
diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index 40e7448..dd5f8ed 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -4248,8 +4248,10 @@
     {
 	if (nfa_timed_out != NULL)
 	{
+# ifdef FEAT_JOB_CHANNEL
 	    if (!*nfa_timed_out)
 		ch_log(NULL, "NFA regexp timed out");
+# endif
 	    *nfa_timed_out = TRUE;
 	}
 	return TRUE;
diff --git a/src/version.c b/src/version.c
index 4678544..584d9e1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5137,
+/**/
     5136,
 /**/
     5135,