release-notes: Add more visible separation between sections in the source file.

guestfs-release-notes.pod

@@ -301,6 +301,8 @@ part-get-bootable gives wrong result with an unordered part layout
 
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 =head1 RELEASE NOTES FOR LIBGUESTFS 1.18
 
 These release notes only cover the differences from the previous
@@ -537,6 +539,8 @@ the git repository, or the ChangeLog file distributed in the tarball.
  - 679737 libguestfs: improve error message when zerofree is not available in the appliance
  - 635971 glob mkfs ext2 /dev/vd[b-t]1 does not expand
 
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 =head1 RELEASE NOTES FOR LIBGUESTFS 1.16
 
 These release notes only cover the differences from the previous
@@ -675,6 +679,8 @@ the git repository, or the ChangeLog file distributed in the tarball.
  - 750889 Python code incompatible with Python v3.
  - 596761 Ctrl-\ causes guestfish to abort
 
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 =head1 RELEASE NOTES FOR LIBGUESTFS 1.14
 
 These release notes only cover the differences from the previous
@@ -842,6 +848,8 @@ the git repository, or the ChangeLog file distributed in the tarball.
  - 666578 libguestfs: unknown filesystem label SWAP-sda2
  - 642821 virt-resize falls over on a disk image with a logical swap partition
 
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 =head1 RELEASE NOTES FOR LIBGUESTFS 1.12
 
 These release notes only cover the differences from the previous
@@ -973,6 +981,8 @@ the git repository, or the ChangeLog file distributed in the tarball.
  - 717786 libguestfs python bindings should have an explicit close call
  - 721275 virt-resize in F16 should support btrfs
 
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 =head1 Release notes for libguestfs 1.10.0
 
 These release notes only cover the differences from the previous
@@ -1113,6 +1123,8 @@ the git repository, or the ChangeLog file distributed in the tarball.
  - 692545 inspect-list-applications fails to detect 32 bit apps installed under WOW64 emulator on 64 bit Windows
  - 693324 sfdisk's python interface only accepts lists of type 'list' for the lines parameter
 
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 =head1 Release notes for libguestfs 1.8
 
 These release notes only cover the differences from the previous
@@ -1253,6 +1265,8 @@ the git repository, or the ChangeLog file distributed in the tarball.
  - 654638 openssl updated to 1.0.0b libguestfs depends on exact file names
  - 652796 ruby bindings not installed by 'make install', hence omitted from the binary distribution
 
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 =head1 RELEASE NOTES FOR LIBGUESTFS 1.6
 
 These release notes only cover the differences from the previous
@@ -1418,6 +1432,8 @@ the git repository, or the ChangeLog file distributed in the tarball.
  - 571714 Running virt-df on disk image relabels it, so qemu can no longer write to it.
  - 502533 Updated Polish translation of libguestfs
 
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 =head1 RELEASE NOTES FOR LIBGUESTFS 1.4
 
 These release notes only cover the differences from the previous
@@ -1612,6 +1628,8 @@ the git repository, or the ChangeLog file distributed in the tarball.
  - 501889 write-file does not support strings containing ASCII NUL
  - 484986 grub-install fails on virtio disk
 
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 =head1 RELEASE NOTES FOR HISTORICAL VERSIONS OF LIBGUESTFS
 
 Before 2010 libguestfs did not have official release notes or a