convert ASCII TABs to ASCII SPACEs

Converted all ASCII tabs to ASCII spaces using a 8 character
tab stop, for all files, except for all Makefiles (plus rpm.mk).
The `git diff -w` reports no changes.

cal/bindings

@@ -8,7 +8,7 @@
 #
 # Calc is distributed in the hope that it will be useful, but WITHOUT
 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-# or FITNESS FOR A PARTICULAR PURPOSE.	See the GNU Lesser General
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General
 # Public License for more details.
 #
 # A copy of version 2.1 of the GNU Lesser General Public License is
@@ -16,56 +16,56 @@
 # received a copy with calc; if not, write to Free Software Foundation, Inc.
 # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #
-# Under source code control:	1993/05/02 20:09:19
-# File existed as early as:	1993
+# Under source code control:    1993/05/02 20:09:19
+# File existed as early as:     1993
 #
 # Share and enjoy!  :-) http://www.isthe.com/chongo/tech/comp/calc/
 
 # NOTE: This facility is ignored if calc was compiled with GNU-readline.
-#	In that case, the standard readline mechanisms (see readline(3))
-#	are used in place of those found below.
+#       In that case, the standard readline mechanisms (see readline(3))
+#       are used in place of those found below.
 
 
-map	base-map
+map     base-map
 default insert-char
-^@	set-mark
-^A	start-of-line
-^B	backward-char
-^D	delete-char
-^E	end-of-line
-^F	forward-char
-^H	backward-kill-char
-^J	new-line
-^K	kill-line
-^L	refresh-line
-^M	new-line
-^N	forward-history
-^O	save-line
-^P	backward-history
-^R	reverse-search
-^T	swap-chars
-^U	flush-input
-^V	quote-char
-^W	kill-region
-^Y	yank
-^?	backward-kill-char
-^[	ignore-char	esc-map
+^@      set-mark
+^A      start-of-line
+^B      backward-char
+^D      delete-char
+^E      end-of-line
+^F      forward-char
+^H      backward-kill-char
+^J      new-line
+^K      kill-line
+^L      refresh-line
+^M      new-line
+^N      forward-history
+^O      save-line
+^P      backward-history
+^R      reverse-search
+^T      swap-chars
+^U      flush-input
+^V      quote-char
+^W      kill-region
+^Y      yank
+^?      backward-kill-char
+^[      ignore-char     esc-map
 
-map	esc-map
-default ignore-char	base-map
-G	start-of-line
-H	backward-history
-P	forward-history
-K	backward-char
-M	forward-char
-O	end-of-line
-S	delete-char
-g	goto-line
-s	backward-word
-t	forward-word
-d	forward-kill-word
-u	uppercase-word
-l	lowercase-word
-h	list-history
-^[	flush-input
-[	arrow-key
+map     esc-map
+default ignore-char     base-map
+G       start-of-line
+H       backward-history
+P       forward-history
+K       backward-char
+M       forward-char
+O       end-of-line
+S       delete-char
+g       goto-line
+s       backward-word
+t       forward-word
+d       forward-kill-word
+u       uppercase-word
+l       lowercase-word
+h       list-history
+^[      flush-input
+[       arrow-key