tools/cgxset: fix help/usage formatting

The help/usage output is misaligned, which is a mix of tabs and spaces.
Fix it by using only spaces for the alignment, so that we have a visual
representation of output in the code too, instead of having unaligned
info()'s needing to calculate the tabs stops always.

Before:
-------
Usage: cgxset [-r <name=value>] <cgroup_path> ...
   or: cgxset --copy-from <source_cgroup_path> <cgroup_path> ...
Set the parameters of given cgroup(s)
  -1, --v1                      Provided parameters are in v1 format
  -2, --v2                      Provided parameters are in v2 format
  -i, --ignore-unmappable       Do not return an error for settings that cannot be converted
  -r, --variable <name>                 Define parameter to set
  --copy-from <source_cgroup_path>      Control group whose parameters will be copied

After:
------
Usage: cgxset [-r <name=value>] <cgroup_path> ...
   or: cgxset --copy-from <source_cgroup_path> <cgroup_path> ...
Set the parameters of given cgroup(s)
  -1, --v1                                Provided parameters are in v1 format
  -2, --v2                                Provided parameters are in v2 format
  -i, --ignore-unmappable                 Do not return an error for settings that cannot be converted
  -r, --variable <name>                   Define parameter to set
  --copy-from <source_cgroup_path>        Control group whose parameters will be copied

Signed-off-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
(cherry picked from commit 44a90415da4ee96bee2d7b51673cd53fe54824a1)

diff --git a/src/tools/cgxset.c b/src/tools/cgxset.c
index 5420e5d5ef492f3362b02e261681a81428b99e6a..583902eea7e8f686d124b79729cda5dc3ce3b691 100644 (file)
--- a/src/tools/cgxset.c
+++ b/src/tools/cgxset.c
@@ -75,12 +75,12 @@ static void usage(int status, const char *program_name)
        info("Usage: %s [-r <name=value>] <cgroup_path> ...\n", program_name);
        info("   or: %s --copy-from <source_cgroup_path> <cgroup_path> ...\n", program_name);
        info("Set the parameters of given cgroup(s)\n");
-       info("  -1, --v1                      Provided parameters are in v1 format\n");
-       info("  -2, --v2                      Provided parameters are in v2 format\n");
-       info("  -i, --ignore-unmappable       Do not return an error for ");
+       info("  -1, --v1                                Provided parameters are in v1 format\n");
+       info("  -2, --v2                                Provided parameters are in v2 format\n");
+       info("  -i, --ignore-unmappable                 Do not return an error for ");
        info("settings that cannot be converted\n");
-       info("  -r, --variable <name>                   Define parameter to set\n");
-       info("  --copy-from <source_cgroup_path>        Control group whose ");
+       info("  -r, --variable <name>                   Define parameter to set\n");
+       info("  --copy-from <source_cgroup_path>        Control group whose ");
        info("parameters will be copied\n");
 }
 #endif /* !UNIT_TEST */