Fixing constructors to match header files

Constructor in cpp file doesn't match header file

Test: m fastboot, fastboot flashall -w
Change-Id: I2c720bb594efca5af1e5a374277543a522ced5ef
diff --git a/fastboot/task.cpp b/fastboot/task.cpp
index ce46e91..e98effb 100644
--- a/fastboot/task.cpp
+++ b/fastboot/task.cpp
@@ -26,9 +26,9 @@
 #include "util.h"
 
 using namespace std::string_literals;
-FlashTask::FlashTask(const std::string& _slot, const std::string& _pname, const std::string& _fname,
+FlashTask::FlashTask(const std::string& slot, const std::string& pname, const std::string& fname,
                      const bool apply_vbmeta)
-    : pname_(_pname), fname_(_fname), slot_(_slot), apply_vbmeta_(apply_vbmeta) {}
+    : pname_(pname), fname_(fname), slot_(slot), apply_vbmeta_(apply_vbmeta) {}
 
 void FlashTask::Run() {
     auto flash = [&](const std::string& partition) {