all: Rename the tool to kdumpst

Big but self-explanatory commit: rename the tool. The name choice was
kdumpst, since it's a tool to enable both kdump and pstore setting, also
it's a silly wordplay with the superlative of kdump, as in "kdumpest".

It's an invasive change (touches most of the files), but should
offer no functional change other than logging messages showing
kdumpst now, instead of kdump, and some filenames.

Notice it doesn't touch documentation, which will be done in
a subsequent commit.

Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>

00-default.conf

@@ -7,7 +7,7 @@
 #
 #  Configuration settings for kdump/pstore. After _any_ change in this
 #  file, it's required to re-create the kdump minimal initramfs by running:
-#  /usr/lib/kdump/kdump-load.sh create-initrd
+#  /usr/lib/kdumpst/kdumpst-load.sh create-initrd
 #
 #
 #  Pstore-RAM settings
@@ -27,7 +27,7 @@ PSTORE_RECORD_SZ=1048576
 #  be stored, as well as the kdump initrd and some ancillary data. This
 #  directory should be in an accessible filesystem (read/write) and if such
 #  folder doesn't exist, it'll be created.
-MOUNT_FOLDER="/var/crash/kdump"
+MOUNT_FOLDER="/var/crash/kdumpst"
 #
 #
 #  Kdump controlling settings
@@ -48,7 +48,7 @@ KDUMP_APPEND_CMDLINE="panic=-1 oops=panic fsck.mode=force fsck.repair=yes nr_cpu
 #
 #
 #  GRUB-related settings
-#  GRUB_AUTOSET determines if the pstore/kdump tooling should try to
+#  GRUB_AUTOSET determines if the kdumpst loader tool should try to
 #  automatically set grub.cfg in order to reserve memory for kdump (if
 #  needed, i.e., when pstore is not in use) - keep it as '1' for enabling
 #  the mechanism (this is the default). GRUB_BOOT_FILE is the full path of