More double slash URL fixes

Fix TCs that reference HOST_WATCHDOG_URI.
Fix TCs that reference DUMP_ENTRY_URI.
Fix TCs that reference SOFTWARE_VERSION_URI.
FiX TCs that reference HOST_INVENTORY_URI.
Fix 'Get Endpoint Paths' keyword.

Change-Id: I77e5818a05ef5960ab8b0ffe14c1684ec9bbee39
Signed-off-by: Steven Sombar <ssombar@us.ibm.com>
diff --git a/tests/test_inventory.robot b/tests/test_inventory.robot
index 00985a2..eff05c1 100644
--- a/tests/test_inventory.robot
+++ b/tests/test_inventory.robot
@@ -695,7 +695,7 @@
     # item  Inventory name (example: "fan/cpu/dimm/etc").
 
     ${count_inventory}  Set Variable  ${0}
-    ${list}=  Get Endpoint Paths  ${HOST_INVENTORY_URI}/system/
+    ${list}=  Get Endpoint Paths  ${HOST_INVENTORY_URI}system/
     ...  ${item}
 
     : FOR  ${element}  IN  @{list}