Use system@ as prefix for a snapshot instead of migrate@

doc/66-snapshot.md

@@ -76,7 +76,7 @@ This subcommand make a snapshot called *named* containing a verbatim copy of the
 
 `%%livedir%%`, `%%system_log%%` and `$HOME/%%user_log%%` for regular users are not taken into account.
 
-The prefix `migrate@` is reserved for snapshot names used in automatic upgrade processes. Please consider to choose a different prefix for your personal snapshot names.
+The prefix `system@` is reserved for snapshot names used in automatic upgrade processes. Please consider to choose a different prefix for your personal snapshot names.
 
 #### Options
 

src/lib66/exec/ssexec_snapshot_create.c

@@ -159,8 +159,8 @@ int ssexec_snapshot_create(int argc, char const *const *argv, ssexec_t *info)
     snapname = *argv ;
 
     if (!system)
-        if (!str_start_with(snapname, "migrate@"))
-            log_die(LOG_EXIT_USER, "migrate@ is a reserved prefix for snapshot names -- please select a different one") ;
+        if (!str_start_with(snapname, "system@"))
+            log_die(LOG_EXIT_USER, "system@ is a reserved prefix for snapshot names -- please select a different one") ;
 
     auto_strings(snapdir.s, info->base.s, SS_SNAPSHOT + 1) ;
 

src/lib66/migrate/migrate_0721.c

@@ -626,12 +626,12 @@ static void migrate_create_snap_0721(ssexec_t *info)
 
     newargv[m++] = "snapshot" ;
     newargv[m++] = "-s" ;
-    newargv[m++] = "migrate@0.7.2.1" ;
+    newargv[m++] = "system@0.7.2.1" ;
     newargv[m] = 0 ;
 
     PROG = "snapshot" ;
     if (ssexec_snapshot_create(m, newargv, info))
-        log_dieu(LOG_EXIT_SYS, "create snapshot migrate@0.7.2.1") ;
+        log_dieu(LOG_EXIT_SYS, "create snapshot system@0.7.2.1") ;
     PROG = prog ;
 
     info->help = help ;