diff --git a/Changes b/Changes
index 5d8ed0dd8..b6a944084 100644
--- a/Changes
+++ b/Changes
@@ -37,7 +37,7 @@ New and rewritten pages
 fopencookie.3
     mtk
         Document fopencookie(3), a library function that allows
-	custom implementation of a stdio stream.
+        custom implementation of a stdio stream.
 
 networks.5
     Martin (Joey) Schulze, with a few light edits by mtk
@@ -60,7 +60,7 @@ Global changes
 Various pages
     mtk
         s/time zone/timezone/ for consistency across pages and
-	with POSIX.1.
+        with POSIX.1.
 
 kill.2
 sigaction.2
@@ -113,7 +113,7 @@ getrusage.2
 ioctl_list.2
     mtk
         Remove old sentence about where to send updates for this page.
-	Add more detail in mount options that prevent updates to atime.
+        Add more detail in mount options that prevent updates to atime.
 
 sched_setscheduler.2
     Carsten Emde
@@ -122,7 +122,7 @@ sched_setscheduler.2
 stat.2
     H. Peter Anvin
         Note that lstat() will generally not trigger automounter
-	action, whereas stat() will.
+        action, whereas stat() will.
 
 clock.3
     Bernd Eckenfels
@@ -132,38 +132,38 @@ clock.3
 clock_getres.3
     Tolga Dalman / mtk
         Add "Link with -lrt" to SYNOPSIS; remove now redundant
-	sentence mentioning librt from NOTES.
+        sentence mentioning librt from NOTES.
 
 getdate.3
     mtk
         Rewrite description of getdate_r() and integrate into main text
-	(rather than describing in NOTES).
-	Other parts rewritten for greater clarity.
+        (rather than describing in NOTES).
+        Other parts rewritten for greater clarity.
         Make it clearer in the main text that glibc does not implement %Z;
-	remove discussion of that point from NOTES.
-	Added an example program.
+        remove discussion of that point from NOTES.
+        Added an example program.
 
 hsearch.3
     mtk
-	Noted that table size as specified by 'nel' is immutable.
-	Described differences between hsearch() and hsearch_r().
-	Added missing pieces to RETURN VALUE.
-	Added a number of new entries under ERRORS.
-	NOTES: added some basic advice on sizing the hash table;
-	noted that when a table is destroyed, the caller is responsible
-	for freeing the buffers pointed to by 'key' and 'data' fields.
+        Noted that table size as specified by 'nel' is immutable.
+        Described differences between hsearch() and hsearch_r().
+        Added missing pieces to RETURN VALUE.
+        Added a number of new entries under ERRORS.
+        NOTES: added some basic advice on sizing the hash table;
+        noted that when a table is destroyed, the caller is responsible
+        for freeing the buffers pointed to by 'key' and 'data' fields.
         One of the BUGS was fixed in glibc 2.3.
         Rewrote and clarified various other pieces.
-	Rename arguments for reentrant functions, using same name as
-	glibc headers: s/ret/retval/; s/tab/htab/.
+        Rename arguments for reentrant functions, using same name as
+        glibc headers: s/ret/retval/; s/tab/htab/.
     mtk, after a suggestion by Timothy S. Wayland
         Integrate discussion of reentrant functions into main discussion
-	(rather than as a short paragraph at the end).
+        (rather than as a short paragraph at the end).
 
 iconv.3
     Bruno Haible
         Describe "shift sequence" input.
-        
+      
 ptsname.3
     sukadev
         Fix return type of ptsname_r() in SYNOPSIS.
@@ -171,8 +171,8 @@ ptsname.3
 readdir.3
     H. Peter Anvin
         s/stat(2)/lstat(2)/ when discussin d_type (since we
-	are talking about a case where we might be interested to
-	whether the file itself is a symbolic link).
+        are talking about a case where we might be interested to
+        whether the file itself is a symbolic link).
 
 sigsetops.3
     Chris Head, signed-off-by: Mike Frysinger
@@ -181,23 +181,23 @@ sigsetops.3
 proc.5
     Mats Wichmann / mtk
         s/\[number]/[pid]/ in file names for /proc/PID files.
-	And similar changes for task/[tid] sub-directories.
+        And similar changes for task/[tid] sub-directories.
     mtk / Mats Wichmann
         In the description if /proc/[pid]/environ, remove reference to
-	lilo(8)/grub(8) since there seems to be nothing in those pages
-	that related to this /proc file.
+        lilo(8)/grub(8) since there seems to be nothing in those pages
+        that related to this /proc file.
     Michael Schurter / mtk
         Remove sentence wrongly saying that /proc/meminfo reports
-	info in bytes
+        info in bytes
         See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=462969
     mtk
-	Note that /proc/meminfo reports system-wide memory usage
-	statistics.
+        Note that /proc/meminfo reports system-wide memory usage
+        statistics.
     Joe Korty
         Document new fields in /proc/interrupts that were added in
-	Linux 2.6.24.
+        Linux 2.6.24.
 
 unix.7
     Marko Kreen
         Since glibc 2.8, _GNU_SOURCE must be defined in order to get
-	the definition of the ucred structure from <sys/socket.h>.
+        the definition of the ucred structure from <sys/socket.h>.