Keeping naming consistent

Test: m fastboot
Change-Id: I46d798fa2ce78a255dc0ea414f5e25782f45c4d1
diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index f5fd3a1..fcad0d9 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -775,7 +775,7 @@
 
 #endif
 
-static unique_fd unzip_to_file(ZipArchiveHandle zip, const char* entry_name) {
+static unique_fd UnzipToFile(ZipArchiveHandle zip, const char* entry_name) {
     unique_fd fd(make_temporary_fd(entry_name));
 
     ZipEntry64 zip_entry;
@@ -1928,7 +1928,7 @@
 }
 
 unique_fd ZipImageSource::OpenFile(const std::string& name) const {
-    return unzip_to_file(zip_, name.c_str());
+    return UnzipToFile(zip_, name.c_str());
 }
 
 static void do_update(const char* filename, FlashingPlan* fp) {