Codespell fixes

Spelling errors found using github.com/lucasdemarchi/codespell
A tool to fix common misspellings.
This tool is licensed under GNU General Public License, version 2.

Change-Id: I2cf277da6cc16322eff8adaba83e1ea98dd4cb41
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/bin/select_version b/bin/select_version
index 0eb8f47..ff09003 100755
--- a/bin/select_version
+++ b/bin/select_version
@@ -17,7 +17,7 @@
 
 # If <program name>_VERSION is blank or not set, then the program version
 # will be whatever the system default program version is.  If <program
-# name>_VERSION is set to a value, then that value will be appened to the name
+# name>_VERSION is set to a value, then that value will be appended to the name
 # of the program (e.g. if PYTHON_VERSION = "3", then python3 will be used.).
 # If <program name>_VERSION is set to some value that does not correspond to a
 # valid program version for the given system, this program will fail.
diff --git a/gui/test/server_control/test_obmc_gui_server_power_operations.robot b/gui/test/server_control/test_obmc_gui_server_power_operations.robot
index d59dfd7..2da67d9 100644
--- a/gui/test/server_control/test_obmc_gui_server_power_operations.robot
+++ b/gui/test/server_control/test_obmc_gui_server_power_operations.robot
@@ -225,7 +225,7 @@
     Click Element  ${xpath_select_server_power_operations}
 
 Verify Presence of Power Button And Text Info
-    [Documentation]  Verify the presens fo power button and text message info.
+    [Documentation]  Verify the presence of power button and text message info.
     [Arguments]      ${power_button}  ${power_button_text}
 
     # power_button         Xpath of power button.
diff --git a/lib/print.tcl b/lib/print.tcl
index acee5ec..98cd051 100755
--- a/lib/print.tcl
+++ b/lib/print.tcl
@@ -100,7 +100,7 @@
     lappend hidden_text $password
   }
 
-  # TODO: Excape metachars in the password_regex.
+  # TODO: Escape metachars in the password_regex.
   set password_regex [join $hidden_text |]
 
 }
diff --git a/lib/utilities.py b/lib/utilities.py
index ae3ad24..dd7da09 100755
--- a/lib/utilities.py
+++ b/lib/utilities.py
@@ -161,7 +161,7 @@
     host   The DNS name or IP address to be passed to the mtr command.
     """
 
-    # Run the mtr command.  Exlude the header line.  Trim leading space from
+    # Run the mtr command.  Exclude the header line.  Trim leading space from
     # each line.  Change all multiple spaces delims to single space delims.
     cmd_buf = "mtr --report " + host +\
         " | tail -n +2 | sed -r -e 's/^[ ]+//g' -e 's/[ ]+/ /g'"
diff --git a/redfish/update_service/test_firmware_property.robot b/redfish/update_service/test_firmware_property.robot
index 753465e..8012a53 100644
--- a/redfish/update_service/test_firmware_property.robot
+++ b/redfish/update_service/test_firmware_property.robot
@@ -28,7 +28,7 @@
 
     Redfish.Patch  ${REDFISH_BASE_URI}UpdateService  body={'ApplyTime' : 'Immediate'}
 
-    # TODO: Move to redfish when avialable.
+    # TODO: Move to redfish when available.
     ${apply_time}=  Read Attribute   ${SOFTWARE_VERSION_URI}apply_time  RequestedApplyTime
     Rprint Vars  apply_time
     Should Be Equal   ${apply_time}  xyz.openbmc_project.Software.ApplyTime.RequestedApplyTimes.Immediate
@@ -50,7 +50,7 @@
 
     Redfish.Patch  ${REDFISH_BASE_URI}UpdateService  body={'ApplyTime' : 'OnReset'}
 
-    # TODO: Move to redfish when avialable.
+    # TODO: Move to redfish when available.
     ${apply_time}=  Read Attribute   ${SOFTWARE_VERSION_URI}apply_time  RequestedApplyTime
     Rprint Vars  apply_time
     Should Be Equal   ${apply_time}  xyz.openbmc_project.Software.ApplyTime.RequestedApplyTimes.OnReset
diff --git a/test_lists/skip_test_witherspoon b/test_lists/skip_test_witherspoon
index e5be694..725c200 100644
--- a/test_lists/skip_test_witherspoon
+++ b/test_lists/skip_test_witherspoon
@@ -56,7 +56,7 @@
 -e Verify_Network_Interface_Recovery
 # Skipping RAS test cases
 -e Host_RAS
-# Skip multi threading test cuasing XML parser failure.
+# Skip multi threading test causing XML parser failure.
 -e Stress_BMC_REST_Server
 -e Stress_BMC_SSH_Server
 -e Stress_BMC_IPMI_Server