Fix typos

Author: petk

cmake/pear/CMakeLists.txt

@@ -34,7 +34,7 @@ if(PHP_PEAR)
     PHP_PEAR_TEMP_DIR "${tmpDir}"
     CACHE FILEPATH
     "The PEAR temporary directory where PEAR writes temporary files, such as\
-    cache, downloaded packages artefacts and similar. Must be absolute path.\
+    cache, downloaded packages artifacts and similar. Must be absolute path.\
     Default: ${tmpDir}."
   )
   # Change from INTERNAL type to show variable on consecutive configuration run.

cmake/pear/InstallPear.cmake

@@ -2,7 +2,7 @@
 The PEAR installation script.
 
 It downloads the PEAR installer and installs it using the built PHP CLI
-executable to sistem directory structure. Some variables need to be set before
+executable to system directory structure. Some variables need to be set before
 running it via the install(CODE) as done in the PEAR's CMakeLists.txt.
 #]=============================================================================]