ACPI / Kconfig: Update ACPI_PROCFS_POWER help text

Fix grammar and punctuation (end sentences with a period) in the
Kconfig help text for ACPI_PROCFS_POWER.

I was looking at this since it appears to be going away (again,
some day) and I have a working script that uses this info to tell me
battery usage. I can update the script to use /sys/class/power_supply
(in theory) but the contents (with units) should be documented in
Documentation/ABI/ before /proc/acpi/battery/ is removed (IMO).
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/Kconfig

@@ -105,14 +105,14 @@ config ACPI_PROCFS_POWER
           deprecated power /proc/acpi/ directories to exist, even when
           they have been replaced by functions in /sys.
           The deprecated directories (and their replacements) include:
-	  /proc/acpi/battery/* (/sys/class/power_supply/*)
-	  /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
+	  /proc/acpi/battery/* (/sys/class/power_supply/*) and
+	  /proc/acpi/ac_adapter/* (sys/class/power_supply/*).
 	  This option has no effect on /proc/acpi/ directories
-	  and functions, which do not yet exist in /sys
+	  and functions which do not yet exist in /sys.
 	  This option, together with the proc directories, will be
 	  deleted in the future.
 
-	  Say N to delete power /proc/acpi/ directories that have moved to /sys/
+	  Say N to delete power /proc/acpi/ directories that have moved to /sys.
 
 config ACPI_REV_OVERRIDE_POSSIBLE
 	bool "Allow supported ACPI revision to be overridden"