Utilities: Fix typos and spelling in comments

Utilities/Scripts/BoostScanDeps.cmake

@@ -20,7 +20,7 @@
 # "component".  For each component, all the headers will be scanned to
 # determine the components it depends upon by following all the
 # possible includes from this component.  This is to match the
-# behaviour of autolinking.
+# behavior of autolinking.
 
 # Written by Roger Leigh <rleigh@codelibre.net>
 
@@ -86,7 +86,7 @@ function(_Boost_FIND_COMPONENT_DEPENDENCIES component includedir _ret_libs)
     set(library_component TRUE)
     set(_boost_unprocessed_headers "${BOOST_DIR}/test/test_exec_monitor.hpp")
   else()
-    # Default behaviour where header directory is the same as the library name.
+    # Default behavior where header directory is the same as the library name.
     file(GLOB_RECURSE _boost_unprocessed_headers
          RELATIVE "${includedir}"
          "${includedir}/boost/${component}/*")

Utilities/Scripts/update-third-party.bash

@@ -89,7 +89,7 @@ readonly basehash_regex="$name $regex_date ([0-9a-f]*)"
 # Check for an empty destination directory on disk.  By checking on disk and
 # not in the repo it allows a library to be freshly re-inialized in a single
 # commit rather than first deleting the old copy in one commit and adding the
-# new copy in a seperate commit.
+# new copy in a separate commit.
 if [ ! -d "$(git rev-parse --show-toplevel)/$subtree" ]; then
     readonly basehash=""
 else

Utilities/Sphinx/cmake.py

@@ -20,7 +20,7 @@ from pygments.lexer import bygroups
 # - [\.\+-] are needed for string constants like gtk+-2.0
 # - Unix paths are recognized by '/'; support for Windows paths may be added if needed
 # - (\\.) allows for \-escapes (used in manual/cmake-language.7)
-# - $<..$<..$>..> nested occurence in cmake-buildsystem
+# - $<..$<..$>..> nested occurrence in cmake-buildsystem
 # - Nested variable evaluations are only supported in a limited capacity. Only
 #   one level of nesting is supported and at most one nested variable can be present.