Save the Logger output as plain text, not JSON

This file is sent in when an event log is created to be used as FFDC.
The output is smaller and also slightly easier to read when it is in a
text file of the form:  <timestamp>: <messsage>.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I5e9953f150cc1478251f3e2131e8b3e548ed1274
diff --git a/presence/error_reporter.cpp b/presence/error_reporter.cpp
index 4644535..f1dfaa9 100644
--- a/presence/error_reporter.cpp
+++ b/presence/error_reporter.cpp
@@ -160,7 +160,7 @@
             sdbusplus::xyz::openbmc_project::Logging::server::Entry::Level::
                 Error);
 
-    // Save our logs in JSON to a temp file and get the file descriptor
+    // Save our logs to a temp file and get the file descriptor
     // so it can be passed in as FFDC data.
     auto logFile = getLogger().saveToTempFile();
     util::FileDescriptor fd{-1};
@@ -172,7 +172,7 @@
         ffdc;
 
     ffdc.emplace_back(sdbusplus::xyz::openbmc_project::Logging::server::Create::
-                          FFDCFormat::JSON,
+                          FFDCFormat::Text,
                       0x01, 0x01, fd());
 
     try