Rename filter options in 'subvol list' subcommand, that way we can
distinguish them from the options that just show some option in the
output and can have a matching uppercase filter.

Signed-off-by: David Sterba <dste...@suse.cz>
---
 cmds-subvolume.c |   17 +++++++++++------
 1 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/cmds-subvolume.c b/cmds-subvolume.c
index ac39f7b..61be38a 100644
--- a/cmds-subvolume.c
+++ b/cmds-subvolume.c
@@ -271,8 +271,13 @@ out:
        return ret;
 }
 
+/*
+ * Naming of options:
+ * - uppercase for filters and sort options
+ * - lowercase for enabling specific items in the output
+ */
 static const char * const cmd_subvol_list_usage[] = {
-       "btrfs subvolume list [-apurts] [-g [+|-]value] [-c [+|-]value] "
+       "btrfs subvolume list [-apurts] [-G [+|-]value] [-C [+|-]value] "
        "[--sort=gen,ogen,rootid,path] <path>",
        "List subvolumes (and snapshots)",
        "",
@@ -282,10 +287,10 @@ static const char * const cmd_subvol_list_usage[] = {
        "-t           print the result as a table",
        "-s           list snapshots only in the filesystem",
        "-r           list readonly subvolumes (including snapshots)",
-       "-g [+|-]value",
+       "-G [+|-]value",
        "             filter the subvolumes by generation",
        "             (+value: >= value; -value: <= value; value: = value)",
-       "-c [+|-]value",
+       "-C [+|-]value",
        "             filter the subvolumes by ogeneration",
        "             (+value: >= value; -value: <= value; value: = value)",
        "--sort=gen,ogen,rootid,path",
@@ -318,7 +323,7 @@ static int cmd_subvol_list(int argc, char **argv)
        optind = 1;
        while(1) {
                c = getopt_long(argc, argv,
-                                   "apsurg:c:t", long_options, NULL);
+                                   "apsurG:C:t", long_options, NULL);
                if (c < 0)
                        break;
 
@@ -345,7 +350,7 @@ static int cmd_subvol_list(int argc, char **argv)
                case 'r':
                        flags |= BTRFS_ROOT_SUBVOL_RDONLY;
                        break;
-               case 'g':
+               case 'G':
                        btrfs_list_setup_print_column(BTRFS_LIST_GENERATION);
                        ret = btrfs_list_parse_filter_string(optarg,
                                                        &filter_set,
@@ -354,7 +359,7 @@ static int cmd_subvol_list(int argc, char **argv)
                                usage(cmd_subvol_list_usage);
                        break;
 
-               case 'c':
+               case 'C':
                        btrfs_list_setup_print_column(BTRFS_LIST_OGENERATION);
                        ret = btrfs_list_parse_filter_string(optarg,
                                                        &filter_set,
-- 
1.7.6.233.gd79bc

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