sysfs: style fix on sysfswrite

Fix camelCase styling on sysfswrite.

Change-Id: I6dec7f46687a1276e756687bc9669ab163b5fdc4
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/sysfs/sysfswrite.cpp b/sysfs/sysfswrite.cpp
index 6ca9b25..93a64dc 100644
--- a/sysfs/sysfswrite.cpp
+++ b/sysfs/sysfswrite.cpp
@@ -29,7 +29,7 @@
     double ovalue = offset + minimum;
 
     std::ofstream ofs;
-    ofs.open(_writepath);
+    ofs.open(_writePath);
     ofs << static_cast<int64_t>(ovalue);
     ofs.close();
 
@@ -39,7 +39,7 @@
 void SysFsWrite::write(double value)
 {
     std::ofstream ofs;
-    ofs.open(_writepath);
+    ofs.open(_writePath);
     ofs << static_cast<int64_t>(value);
     ofs.close();