Fix docs/BUILDING.md error command issue

kclin · 0xc0170 · commit 9625fde66ece · 2016-08-10T15:41:00.000+01:00
diff --git a/docs/BUILDING.md b/docs/BUILDING.md
@@ -444,7 +444,7 @@ Build successes:
 ```
 * We can print all 'programs' (test cases) ```make.py``` can build for us:
 ```
-$ python make.py
+$ python make.py -L
 .
 [  0] MBED_A1: Basic
 [  1] MBED_A2: Semihost file system

Original file line number	Diff line number	Diff line change
`@@ -444,7 +444,7 @@ Build successes:`
`444`	`444`	```
`445`	`445`	* We can print all 'programs' (test cases) ```make.py``` can build for us:
`446`	`446`	```
`447`		`-$ python make.py`
	`447`	`+$ python make.py -L`
`448`	`448`	`.`
`449`	`449`	`[ 0] MBED_A1: Basic`
`450`	`450`	`[ 1] MBED_A2: Semihost file system`