namespace: s/host_tool/ipmiblob/g

Renamed the namespace to encapsulate the library.

Change-Id: I3deb82df5cf6916c505b57864e22a412542c9b6c
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/src/ipmiblob/ipmi_errors.hpp b/src/ipmiblob/ipmi_errors.hpp
index 9f1a9f9..02bfe0b 100644
--- a/src/ipmiblob/ipmi_errors.hpp
+++ b/src/ipmiblob/ipmi_errors.hpp
@@ -5,7 +5,7 @@
 #include <sstream>
 #include <string>
 
-namespace host_tool
+namespace ipmiblob
 {
 
 class IpmiException : public std::exception
@@ -44,4 +44,4 @@
     std::string message;
 };
 
-} // namespace host_tool
+} // namespace ipmiblob