i3 - improved tiling WM

Fix start_application() doc about which shell is used

Patch status: merged

Patch by Tony Crisci

Long description:

Since this commit:

f691a55923850a4d315450925fc98733d07b69c9

the shell that is used is the system's bourne shell (/bin/sh) and the
env variable SHELL is not considered.

No logic changes.

To apply this patch, use:
curl http://cr.i3wm.org/patch/695/raw.patch | git am

b/include/startup.h

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@@ -21,8 +21,8 @@
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  * (immediately), the application is reparented to init (process-id 1), which
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  * correctly handles childs, so we don’t have to do it :-).
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  *
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- * The shell is determined by looking for the SHELL environment variable. If
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- * it does not exist, /bin/sh is used.
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+ * The shell used to start applications is the system's bourne shell (i.e.,
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+ * /bin/sh).
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  *
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  * The no_startup_id flag determines whether a startup notification context
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  * (and ID) should be created, which is the default and encouraged behavior.

b/src/startup.c

37 
@@ -123,8 +123,8 @@ void startup_sequence_delete(struct Startup_Sequence *sequence) {
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  * the application is reparented to init (process-id 1), which correctly handles
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  * childs, so we don’t have to do it :-).
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  *
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- * The shell is determined by looking for the SHELL environment variable. If it
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- * does not exist, /bin/sh is used.
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+ * The shell used to start applications is the system's bourne shell (i.e.,
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+ * /bin/sh).
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  *
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  * The no_startup_id flag determines whether a startup notification context
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  * (and ID) should be created, which is the default and encouraged behavior.