[XRay][compiler-rt][NFC] Turn ProudCase functions to humbleCase functions

Summary:
As pointed out in casual reading of the XRay codebase, that we had
some interesting named functions that didn't quite follow the LLVM coding
conventions.

Reviewers: chandlerc, dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29625

llvm-svn: 294373
diff --git a/compiler-rt/lib/xray/xray_utils.cc b/compiler-rt/lib/xray/xray_utils.cc
index 02118c4..fee47df 100644
--- a/compiler-rt/lib/xray/xray_utils.cc
+++ b/compiler-rt/lib/xray/xray_utils.cc
@@ -34,7 +34,7 @@
 
 namespace __xray {
 
-void PrintToStdErr(const char *Buffer) XRAY_NEVER_INSTRUMENT {
+void printToStdErr(const char *Buffer) XRAY_NEVER_INSTRUMENT {
   fprintf(stderr, "%s", Buffer);
 }
 
@@ -132,7 +132,7 @@
 
 int getLogFD() XRAY_NEVER_INSTRUMENT {
   // FIXME: Figure out how to make this less stderr-dependent.
-  SetPrintfAndReportCallback(PrintToStdErr);
+  SetPrintfAndReportCallback(printToStdErr);
   // Open a temporary file once for the log.
   static char TmpFilename[256] = {};
   static char TmpWildcardPattern[] = "XXXXXX";