CLI Help text and parser formatting updates (#218)

* Small Fixes
* CLI Help text and parser formatting updates
* Changed metavar for set partition

---------
Change-Id: Ia8809665f6fac670452cd4db4e5e8f9c7270faba
Signed-off-by: Maisam Arif <Maisam.Arif@amd.com>
Signed-off-by: Pham, Gabriel <Gabriel.Pham@amd.com>
Co-authored-by: Pham, Gabriel <Gabriel.Pham@amd.com>

[ROCm/amdsmi commit: 53dbb7bf58]

projects/amdsmi/py-interface/amdsmi_wrapper.py

@@ -178,7 +178,7 @@ from pathlib import Path
 #    - current directory
 def find_smi_library():
     err = OSError("Could not load libamd_smi.so")
-    possible_locations = list()
+    possible_locations = []
     # 1.
     rocm_path = os.getenv("ROCM_HOME", os.getenv("ROCM_PATH"))
     if rocm_path: