update download and changelog for v2.091.0-rc.1

Author: MartinNowak

changelog/2.091.0_pre.dd

@@ -5,7 +5,7 @@ $(CHANGELOG_NAV_INJECT)
 $(VERSION Mar 08, 2020, =================================================,
 
 $(CHANGELOG_HEADER_STATISTICS
-$(VER) comes with 18 major changes and 64 fixed Bugzilla issues.
+$(VER) comes with 18 major changes and 65 fixed Bugzilla issues.
         A huge thanks goes to the
         $(LINK2 #contributors, 55 contributors)
         who made $(VER) possible.)
@@ -461,6 +461,7 @@ $(LI $(BUGZILLA 20476): chainTogether leaks exception with -dip1008)
 $(LI $(BUGZILLA 20512): Return type of memchr should be inout$(LPAREN)void$(RPAREN)* rather than void*)
 $(LI $(BUGZILLA 20513): Return type of wmemchr should be inout$(LPAREN)wchar_t$(RPAREN)* rather than wchar_t*)
 $(LI $(BUGZILLA 20591): ldc doesn't print files' directories when printing stack trace)
+$(LI $(BUGZILLA 20629): atomicStore does not compile for struct using -m64)
 )
 $(BUGSTITLE_BUGZILLA Druntime enhancements,
 

download.dd

@@ -221,7 +221,7 @@ Macros:
     _=BETA=$(COMMENT $0)
     BETA=$0
     B_DMDV2=2.091.0
-    B_SUFFIX=beta.2
+    B_SUFFIX=rc.1
 
         DEB32=$(DLSITE dmd_$(DMDV2)-0_i386.deb)
         DEB64=$(DLSITE dmd_$(DMDV2)-0_amd64.deb)