Fixed some spelling errors

Author: eribertomota

ChangeLog

@@ -2,7 +2,7 @@
 Version 1.0.7
 
   [ Vratislav Bendel ]
-  * Check for sys/prctl.h availibility, because non-Linux
+  * Check for sys/prctl.h availability, because non-Linux
     architectures don't provide <sys/prctl.h>.
 
   [ Joao Eriberto Mota Filho ]
@@ -169,7 +169,7 @@ Version 0.18.6
 
 	* TODO: Explain about removing the --backoff option.
 
-	* TODO: Initial checkin.
+	* TODO: Initial check-in.
 
 2005-04-08  Amos Waterland  <apw@rossby.metr.ou.edu>
 Version 0.18.4
@@ -332,7 +332,7 @@ Version 0.18.1
 	* etc/deb/debian/control, etc/deb/debian/copyright,
 	etc/deb/debian/docs, etc/deb/debian/files, etc/deb/debian/info,
 	etc/deb/debian/rules, etc/deb/Makefile, etc/deb/debian/changelog:
-	Initial checkin.
+	Initial check-in.
 
 2003-07-08  Amos Waterland  <apw@rossby.metr.ou.edu>
 
@@ -345,7 +345,7 @@ Version 0.18.1
 	* etc/rpm/SPECS/stress.spec, etc/rpm/Makefile, etc/rpm/stress.spec:
 	Change organization.
 
-	* etc/rpm/stress.spec: Initial checkin.
+	* etc/rpm/stress.spec: Initial check-in.
 
 2003-06-17  Amos Waterland  <apw@rossby.metr.ou.edu>
 
@@ -486,7 +486,7 @@ Version 0.17pre18
 
 	* doc/Makefile.am: Minor changes.
 
-	* doc/Makefile.am, doc/stress.1, doc/version.texi: Readded file.
+	* doc/Makefile.am, doc/stress.1, doc/version.texi: Re-added file.
 
 	* src/stress.c: Removed kill of process group.