Rename column name to Abbreviation

Data/Abbr/aviation.csv

@@ -1,4 +1,4 @@
-Abbr,Description
+Abbreviation,Description
 AB,Air Base
 AC,Aircraft
 ACAS,Airborne Collision Avoidance System

Data/Abbr/computer.csv

@@ -1,4 +1,4 @@
-Abbr,Description
+Abbreviation,Description
 CPU,Central Processing Unit
 GPU,Graphics Processing Unit
 RAM,Random Access Memory

Data/Abbr/medicine.csv

@@ -1,4 +1,4 @@
-Abbr,Description
+Abbreviation,Description
 PR,per the rectum
 pr,per the rectum
 PT,prothrombin time

Data/Abbr/misc.csv

@@ -1,4 +1,4 @@
-Abbr,Description
+Abbreviation,Description
 0D,obvious deed
 1AM,Air Mechanic 1st Class
 1D,One-Dimensional

Data/Abbr/music.csv

@@ -1,4 +1,4 @@
-Abbr,Description
+Abbreviation,Description
 8va,Octave up
 ad lib,Ad Libitum (“freely”)
 afl,Alto flute

Scripts/what-is.ps1

@@ -17,9 +17,9 @@ try {
 	foreach ($File in $Files) {
 		$Table = import-csv "$File"
 		foreach($Row in $Table) {
-			if ($Row.Abbr -eq $Abbreviation) {
+			if ($Row.Abbreviation -eq $Abbreviation) {
 				$Filename = (get-item "$File").Name
-				"  → $($Row.Abbr) = $($Row.Description) (in $Filename)"
+				"  → $($Row.Abbreviation) = $($Row.Description) (in $Filename)"
 				$FoundOne = $true
 			}
 		}