Fix caps for "break line" variables

99bottles.sh

         echo "Go to the store and buy some more"
         nb=ninety-nine
     else
-        echo "$breakLine"
+        echo "$BreakLine"
         nb=$(pred "$nb")
     fi
     echo "$nb bottles of beer on the wall"
 }
 
 main() {
-    local breakLine             # bottle-break (or not) line
-    local standardBreakLine     # ^^ standard variant
-    local wastefulBreakLine     # ^^ wasteful (bottle breaks) variant
+    local BreakLine             # bottle-break (or not) line
+    local standard_break_line   # ^^ standard variant
+    local wasteful_break_line   # ^^ wasteful (bottle breaks) variant
     local nb            # beginning number
-    standardBreakLine="Take one down and pass it around"
-    wastefulBreakLine="If one of those bottles should happen to fall"
-    breakLine=$(
+    standard_break_line="Take one down and pass it around"
+    wasteful_break_line="If one of those bottles should happen to fall"
+    BreakLine=$(
         [ "$1" = --careless ] \
-         && echo "$wastefulBreakLine" \
-         || echo "$standardBreakLine"
+         && echo "$wasteful_break_line" \
+         || echo "$standard_break_line"
     )
     nb=ninety-nine
     while [ -n "$nb" ]; do