Add new perldelta

MANIFEST

@@ -4744,6 +4744,7 @@ pod/perl5222delta.pod		Perl changes in version 5.22.2
 pod/perl5240delta.pod		Perl changes in version 5.24.0
 pod/perl5250delta.pod		Perl changes in version 5.25.0
 pod/perl5251delta.pod		Perl changes in version 5.25.1
+pod/perl5252delta.pod		Perl changes in version 5.25.2
 pod/perl561delta.pod		Perl changes in version 5.6.1
 pod/perl56delta.pod		Perl changes in version 5.6
 pod/perl581delta.pod		Perl changes in version 5.8.1

Makefile.SH

@@ -522,7 +522,7 @@ miniperl_objs = $(miniperl_objs_nodt) $(DTRACE_MINI_O)
 perllib_objs  = $(perllib_objs_nodt) $(DTRACE_PERLLIB_O)
 perlmain_objs = perlmain$(OBJ_EXT) $(DTRACE_MAIN_O)
 
-perltoc_pod_prereqs = extra.pods pod/perl5252delta.pod pod/perlapi.pod pod/perlintern.pod pod/perlmodlib.pod pod/perluniprops.pod
+perltoc_pod_prereqs = extra.pods pod/perl5253delta.pod pod/perlapi.pod pod/perlintern.pod pod/perlmodlib.pod pod/perluniprops.pod
 generated_pods = pod/perltoc.pod $(perltoc_pod_prereqs)
 generated_headers = uudmap.h bitcount.h mg_data.h
 
@@ -1085,9 +1085,9 @@ pod/perlintern.pod: $(MINIPERL_EXE) autodoc.pl embed.fnc
 pod/perlmodlib.pod: $(MINIPERL_EXE) pod/perlmodlib.PL MANIFEST
 	$(MINIPERL) pod/perlmodlib.PL -q
 
-pod/perl5252delta.pod: pod/perldelta.pod
-	$(RMS) pod/perl5252delta.pod
-	$(LNS) perldelta.pod pod/perl5252delta.pod
+pod/perl5253delta.pod: pod/perldelta.pod
+	$(RMS) pod/perl5253delta.pod
+	$(LNS) perldelta.pod pod/perl5253delta.pod
 
 extra.pods: $(MINIPERL_EXE)
 	-@test ! -f extra.pods || rm -f `cat extra.pods`

pod/.gitignore

@@ -53,7 +53,7 @@
 /roffitall
 
 # generated
-/perl5252delta.pod
+/perl5253delta.pod
 /perlapi.pod
 /perlintern.pod
 *.html

pod/perl.pod

@@ -180,6 +180,7 @@ aux c2ph h2ph h2xs perlbug pl2pm pod2html pod2man splain xsubpp
 
     perlhist		Perl history records
     perldelta		Perl changes since previous version
+    perl5252delta	Perl changes in version 5.25.2
     perl5251delta	Perl changes in version 5.25.1
     perl5250delta	Perl changes in version 5.25.0
     perl5240delta	Perl changes in version 5.24.0