Update POCO library.

vendor/POCO/build/config/AppleTV

@@ -2,7 +2,7 @@
 # AppleTV
 #
 # Build settings for tvOS 9.0 and newer
-# 
+#
 
 #
 # General Settings
@@ -18,7 +18,7 @@ LINKMODE ?= STATIC
 # TVOS_SDK_VERSION = 9.0
 
 # if TVOS_SDK_VERSION_MIN is defined use that
-# Otherwise use the version found. 
+# Otherwise use the version found.
 
 TVOS_SDK             ?= AppleTVOS
 TVOS_SDK_ROOT        ?= $(shell xcode-select -print-path)/Platforms/$(TVOS_SDK).platform/Developer/SDKs
@@ -45,9 +45,9 @@ LINK    = $(CXX) -bind_at_load
 LIB     = libtool -static -o
 RANLIB  = ranlib
 SHLIB   = $(CXX) $(OSFLAGS) -dynamiclib -Wl,-install_name,$@ -o $@
-DYLIB   = $(CXX) $(OSFLAGS) -dynamic -bundle -read_only_relocs suppress -Wl,-bind_at_load -o $@ 
+DYLIB   = $(CXX) $(OSFLAGS) -dynamic -bundle -read_only_relocs suppress -Wl,-bind_at_load -o $@
 SHLIBLN = $(POCO_BASE)/build/script/shlibln
-STRIP   = 
+STRIP   =
 DEP     = $(POCO_BASE)/build/script/makedepend.gcc
 SHELL   = sh
 RM      = rm -rf
@@ -66,23 +66,23 @@ SHAREDLIBLINKEXT = .dylib
 CFLAGS          = $(OSFLAGS) -std=gnu99
 CFLAGS32        =
 CFLAGS64        =
-CXXFLAGS        = $(OSFLAGS) -std=c++11 -stdlib=libc++ -Wall -Wno-sign-compare 
+CXXFLAGS        = $(OSFLAGS) -std=c++11 -stdlib=libc++ -Wall -Wno-sign-compare
 CXXFLAGS32      =
-CXXFLAGS64      = 
+CXXFLAGS64      =
 LINKFLAGS       = $(OSFLAGS) -stdlib=libc++
 LINKFLAGS32     =
 LINKFLAGS64     =
 STATICOPT_CC    =
 STATICOPT_CXX   =
 STATICOPT_LINK  =
-SHAREDOPT_CC    = -fPIC 
+SHAREDOPT_CC    = -fPIC
 SHAREDOPT_CXX   = -fPIC
-SHAREDOPT_LINK  = 
+SHAREDOPT_LINK  =
 DEBUGOPT_CC     = -g -D_DEBUG=$(DEBUGLEVEL)
-DEBUGOPT_CXX    = -g -D_DEBUG=$(DEBUGLEVEL) 
+DEBUGOPT_CXX    = -g -D_DEBUG=$(DEBUGLEVEL)
 DEBUGOPT_LINK   =
 RELEASEOPT_CC   = -DNDEBUG -O2
-RELEASEOPT_CXX  = -DNDEBUG -O 
+RELEASEOPT_CXX  = -DNDEBUG -O
 RELEASEOPT_LINK =
 
 #