Fix missing newline in Fastboot help.

Change-Id: Ib5cfa562f7655f7905002f7874dccc39aaa41837
diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index a821ddc..e5caae2 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -371,8 +371,8 @@
             "                                           formatting.\n"
             "  -s <specific device>                     Specify a device. For USB, provide either\n"
             "                                           a serial number or path to device port.\n"
-            "                                           For ethernet, provide an address in the"
-            "                                           form <protocol>:<hostname>[:port] where"
+            "                                           For ethernet, provide an address in the\n"
+            "                                           form <protocol>:<hostname>[:port] where\n"
             "                                           <protocol> is either tcp or udp.\n"
             "  -p <product>                             Specify product name.\n"
             "  -c <cmdline>                             Override kernel commandline.\n"