log-manager: fix arg bounds

An incorrect argument count check results in `argv[1]` being accessed
even when it is not provided.  This causes a SEGV on launch of the
daemon in normal cases (on a system) when the temporary path location
is not provided.

Fixes: fa2d962
Signed-off-by: Patrick Williams <[email protected]>
Change-Id: Ibe7254533cb6002d73c5a1ada8bb1f35e9c9df53

Author: williamspatrick

log_manager_main.cpp

@@ -17,7 +17,7 @@ int main(int argc, char* argv[])
 {
     PHOSPHOR_LOG2_USING_WITH_FLAGS;
 
-    if (argc >= 1)
+    if (argc >= 2)
     {
         PERSIST_PATH_ROOT = strdup(argv[1]);
         info("Using temporary {PATH} for logs", "PATH", PERSIST_PATH_ROOT);