Move doc for git commit template

dev/setup/git/README.md

@@ -0,0 +1,5 @@
+To enable a default git commit template:
+git config --local commit.template gitmessage
+
+To enable the git hook pre-commit, to make CI validation at commit:
+See the file pre-commit/README.md

htdocs/bom/class/bom.class.php

@@ -1496,7 +1496,7 @@ class BOM extends CommonObject
 
 			if ($this->qty > 0) {
 				$this->unit_cost = (float) price2num($this->total_cost / $this->qty, 'MU');
-			} elseif ($this->qty < 0) {	
+			} elseif ($this->qty < 0) {
 				$this->unit_cost = (float) price2num($this->total_cost * $this->qty, 'MU');
 			}
 		}