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.

help/fgetc

@@ -5,16 +5,16 @@ SYNOPSIS
     fgetc(fd)
 
 TYPES
-    fd		file
+    fd          file
 
-    return	str or nil
+    return      str or nil
 
 DESCRIPTION
     This function reads the next character from the open file
     associated with fd.
 
     If there is a next character, this function returns a 1
-    character string containing that character.	 In the case
+    character string containing that character.  In the case
     of EOF or error, nil is returned.
 
 EXAMPLE
@@ -22,7 +22,7 @@ EXAMPLE
     ; fputs(fd, "chongo was here\n")
     ; fd2 = fopen("/tmp/newfile", "r")
     ; fgetc(fd2)
-	    "c"
+            "c"
 
 LIMITS
     fd must be associated with an open file
@@ -42,7 +42,7 @@ SEE ALSO
 ##
 ## 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
@@ -50,8 +50,8 @@ SEE ALSO
 ## 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:	1995/03/04 11:33:19
-## File existed as early as:	1995
+## Under source code control:   1995/03/04 11:33:19
+## File existed as early as:    1995
 ##
-## chongo <was here> /\oo/\	http://www.isthe.com/chongo/
-## Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/
+## chongo <was here> /\oo/\     http://www.isthe.com/chongo/
+## Share and enjoy!  :-)        http://www.isthe.com/chongo/tech/comp/calc/