Fix and standardize 'columns' labels

gnucash/report/reports/standard/investment-lots.scm

@@ -60,9 +60,9 @@
 (define optname-show-sold-columns (N_ "Show sold columns"))
 (define optname-show-end-columns (N_ "Show end columns"))
 (define optname-show-realized-gain-columns
-    (N_ "Show realized gain column(s)"))
+    (N_ "Show realized gain columns"))
 (define optname-show-unrealized-gain-columns
-    (N_ "Show unrealized gain column(s)"))
+    (N_ "Show unrealized gain columns"))
 (define optname-group-gains-by-age
     (N_ "Group gains by age (short term and long term)"))
 (define optname-long-term-years (N_ "Long term gains age (years)"))
@@ -314,14 +314,14 @@
         pagename-columns
         optname-show-roi-columns
         "j"
-        (N_ "Show Return On Investment (ROI) columns(s)")
+        (N_ "Show Return On Investment (ROI) columns")
         #f)
 
     (gnc-register-simple-boolean-option options
         pagename-columns
         optname-show-cagr-columns
         "k"
-        (N_ "Show Compound Annual Growth Rate (CAGR) columns(s)")
+        (N_ "Show Compound Annual Growth Rate (CAGR) columns")
         #t)
 
     ;; Display tab
@@ -637,8 +637,8 @@
               (zero? years))
         #f ; Unable to compute CAGR.
         (- (expt (/ end-value basis)
-                 (/ 1 years))
-           1)))
+              (/ 1 years))
+          1)))
 
     ;; Gets the account name.
     (define (account->name account)